write an essay on life span

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Your Guide to IELTS Band 7

IELTS Model Essay: Increased Life Expectancy

In this post, I’m going to write an IELTS Writing Task 2 model essay in response to this question about increased life expectancy from Test 2 of The Official Cambridge Guide To IELTS :

You should spend about 40 minutes on this task.

Write about the following topic:

One of the consequences of improved medical care is that people are living longer and life expectancy is increasing.

Do you think the advantages of this development outweigh the disadvantages?

Give reasons for your answer and include any relevant examples from your own knowledge or experience.

Write at least 250 words.

Let’s go through my 4 Step Approach to essay planning:

Analyse The Question
Decide My Position
Generate My Ideas
Develop My Ideas

I’ll write these 4 steps out in full, so you can see my thinking. Obviously, you won’t have time to write all this down when you plan your essay, but you will have time to think the 4 steps through in your head. In fact, Steps 2 to 4 might happen together, if you think deeply enough about your views.

Step 1: Analyse The Question

The first thing to do is analyse the question.

TWO things are mentioned here: (1) “people are living longer” and (2) “life expectancy is increasing”. However, these are not two separate issues; I think life expectancy is mentioned to emphasise the fact that this will continue into the future, so it’s a long-term issue.

Now, I don’t want to die, so living longer only has advantages to me, but the question isn’t about ME, it’s about people in general; society.

So let’s reword the question , so it’s clearer: do the advantages of living longer outweigh the disadvantages for society?

Step 2: Decide My Position (What Do I Think?)

So, what do I REALLY think about this issue? In other words, what’s my position on this issue?

Clearly – if you REALLY think about this issue – there are BOTH advantages AND disadvantages to living longer for society, so you should discuss both advantages and disadvantages of you want to write a well-developed response (and have a chance of getting a Band 8 for TR).

On the whole, I think the advantages outweigh the disadvantages , because we can do more with our lives, BUT only if living longer means being healthier for longer, and being able to pay for retirement.

Step 3: Generate My Ideas (Why Do I Think This?)

Now let’s expand my position – why do I take this position? This is really just an expansion of the position I outlined above, into 4 main ideas .

Advantages:

A longer retirement means more opportunities for recreational pursuits – (assuming they have the health and money to pay for it.)
Grandparents can help to look after and offer advice to their grandchildren, making life easier for parents.

Disadvantages:

Older people are more likely to suffer from health problems, especially chronic health problems such as diabetes and back pain.
If older people don’t work, they need a larger pension to pay for their longer retirement.

Step 4: Develop My Ideas

Next, I’m going to develop my ideas using a logical structure. This will give me a clear essay plan.

Introduction :

people are living longer, and can expect to live longer, because of improved health care. Seems like a good thing, but are there any disadvantages of this trend?

Body Paragraph 1: Advantages

Main Idea 1: more time to be active and useful
Explanation 1 : opportunities for activities, hobbies
Explanation 2 : more people to look after our younger generation

Body Paragraph 2: Disadvantages

Main Idea: Both these advantages depend on good health and money.
Explanation 1 : older people more likely to have poor health; health care costs
Example : chronic health problems (diabetes, muscle pain)
Explanation 2 : pension funds may be limited. Who will pay?
advantages greater, but they depend on health and wealth.

So, all I need to do now is expand these notes into full sentences and link them together!

So here’s my essay:

My Model Essay

Over the last half century, life expectancy across the world has been rising as a result of better quality healthcare. This means that today we have an ageing population. On the face of it, living longer seems to be a good thing – after all, nobody really want to die! – but a decent old age depends on health and wealth.

Many people in their seventies and eighties, and even older, are able to enjoy a long and fulfilling retirement. They can travel to new destinations and get involved in a wide range of hobbies and activities that were impossible while working and bringing up a family. Those with grandchildren may also be able to help young, busy parents with such tasks as collecting children from school; moreover, they could share their life experiences with the younger generation.

But while there are tremendous benefits to increased life expectancy, they depend, to an extent, on being healthy and having money. Older people are more likely to suffer from medical problems, especially chronic illnesses like diabetes and muscle pain, which can seriously restrict the kinds of activities they do. This also means increased health care costs, for both individuals and society. In addition, if older people aren’t working, they will have to rely on savings and pensions to pay for their lifestyle, but many older people simply won’t have been able to save enough for a long old age.

Overall then, I feel that the benefits of living older are clear, but these must be balanced against the implications for health and money. If living longer simply means chronic health complaints and grinding poverty for a longer time, it is questionable as to whether it is an advantage at all.

I hope my model essay helps to show you how to write at a Band 8 or Band 9 level. If you think others will find this essay useful, please share it.

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Discover the 7 STEPS to BAND 7 in IELTS Writing Task 2

Intro to Lifespan Development

Why study lifespan development.

Three generations of women in a family: young adult, middle-aged mother, and older grandmother.

Welcome to the study of lifespan development! This is the scientific study of how and why people change or remain the same over time.

Think about how you were five, ten, or even fifteen years ago. In what ways have you changed? In what ways have you remained the same? You have probably changed physically; perhaps you’ve grown taller and become heavier. But you may have also experienced changes in the way you think and solve problems. Cognitive change is noticeable when we compare how 6-year olds, 16-year olds, and 46-year olds think and reason, for example. Their thoughts about themselves, others, and the world are probably quite different. Consider friendship—a 6-year-old may think that a friend is someone with whom they can play and have fun. A 16-year old may seek friends who can help them gain status or popularity. And the 46-year old may have acquaintances, but rely more on family members to do things with and confide in. You may have also experienced psychosocial change. This refers to emotions and psychological issues as well as social roles and relationships. Psychologist Erik Erikson suggests that we struggle with issues of trust, independence, and intimacy at various points in our lives (we will explore this thoroughly throughout the course.)

This is a very interesting and meaningful course because it is about each of us and those with whom we live and work. One of the best ways to gain perspective on our own lives is to compare our experiences with those of others. In this course, we will strive to learn about each phase of human development and the physical, cognitive, and psychosocial changes, all the while making cross-cultural and historical comparisons and connections to the world around us.

In addition, we will take a lifespan developmental approach to learn about human development. That means that we won’t just learn about one particular age period by itself; we will learn about each age period, recognizing how it is related to both previous developments and later developments. For instance, it helps us to understand what’s happening with the 16-year old by knowing about development in the infant, toddler, early childhood, and middle childhood years. In turn, learning about all of that development and development during adolescence and early adulthood will help us to more fully understand the person at age 46 (and so on throughout midlife and later adulthood).

Development does not stop at a certain age; development is a lifelong process. We may find individual and group differences in patterns of development, so examining the influences of gender, cohort/generation, race, ethnicity, culture, socioeconomic status, education level, and time in history is also important. With the lifespan developmental perspective, we will gain a more comprehensive view of the individual within the context of their own developmental journey and within social, cultural, and historical contexts. In this way, this course covers and crosses multiple disciplines, such as psychology, biology, sociology, anthropology, education, nutrition, economics, and healthcare.

Think It Over

Wherever you are in your own lifespan developmental journey, imagine yourself as an elderly person about to turn 100 years old (becoming a “centenarian”). If researchers want to understand you and your development, would they get the full picture if they just took a snapshot (so to speak) of you at that point in time? What else would you want them to know about you, your development, and your experiences to really understand you?

What you’ll learn to do: define human development and identify the stages of human development

Graphic of stages of human growth from infancy to adulthood

What aspects of ourselves change and develop as we journey through life? We move through significant physical, cognitive, and psychosocial changes throughout our lives—do these changes happen in a systematic way, and to everyone? How much is due to genetics and how much is due to environmental influences and experiences (both within our personal control and beyond)? Is there just one course of development or are there many different courses of development? In this module, we’ll examine these questions and learn about the major stages of development and what kind of developmental tasks and transitions we might expect along the way.

Learning Outcomes

Describe human development and its three domains: physical, cognitive, and psychosocial development
Explain key human development issues about the nature of change: continuous/discontinuous, one course/multiple courses, and nature/nurture
Describe the basic periods of human development

Defining Human Development

Human development refers to the physical, cognitive, and psychosocial development of humans throughout the lifespan. What types of development are involved in each of these three domains, or areas, of life? Physical development involves growth and changes in the body and brain, the senses, motor skills, and health and wellness. Cognitive development involves learning, attention, memory, language, thinking, reasoning, and creativity. Psychosocial development involves emotions, personality, and social relationships.

Physical Domain

Many of us are familiar with the height and weight charts that pediatricians consult to estimate if babies, children, and teens are growing within normative ranges of physical development. We may also be aware of changes in children’s fine and gross motor skills, as well as their increasing coordination, particularly in terms of playing sports. But we may not realize that physical development also involves brain development, which not only enables childhood motor coordination but also greater coordination between emotions and planning in adulthood, as our brains are not done developing in infancy or childhood. Physical development also includes puberty, sexual health, fertility, menopause, changes in our senses, and primary versus secondary aging. Healthy habits with nutrition and exercise are also important at every age and stage across the lifespan.

Cognitive Domain

If we watch and listen to infants and toddlers, we can’t help but wonder how they learn so much so fast, particularly when it comes to language development. Then as we compare young children to those in middle childhood, there appear to be huge differences in their ability to think logically about the concrete world around them. Cognitive development includes mental processes, thinking, learning, and understanding, and it doesn’t stop in childhood. Adolescents develop the ability to think logically about the abstract world (and may like to debate matters with adults as they exercise their new cognitive skills!). Moral reasoning develops further, as does practical intelligence—wisdom may develop with experience over time. Memory abilities and different forms of intelligence tend to change with age. Brain development and the brain’s ability to change and compensate for losses is significant to cognitive functions across the lifespan, too.

Psychosocial Domain

Development in this domain involves what’s going on both psychologically and socially. Early on, the focus is on infants and caregivers, as temperament and attachment are significant. As the social world expands and the child grows psychologically, different types of play, and interactions with other children and teachers become important. Psychosocial development involves emotions, personality, self-esteem, and relationships. Peers become more important for adolescents, who are exploring new roles and forming their own identities. Dating, romance, cohabitation, marriage, having children, and finding work or a career are all parts of the transition into adulthood. Psychosocial development continues across adulthood with similar (and some different) developmental issues of family, friends, parenting, romance, divorce, remarriage, blended families, caregiving for elders, becoming grandparents and great grandparents, retirement, new careers, coping with losses, and death and dying.

As you may have already noticed, physical, cognitive, and psychosocial development are often interrelated, as with the example of brain development. We will be examining human development in these three domains in detail throughout the modules in this course, as we learn about infancy/toddlerhood, early childhood, middle childhood, adolescence, young adulthood, middle adulthood, and late adulthood development, as well as death and dying.

Who Studies Human Development and Why?

Many academic disciplines contribute to the study of development and this type is offered in some schools as psychology (particularly as developmental psychology); in other schools, it is taught under sociology, human development, or family studies. This multidisciplinary course is made up of contributions from researchers in the areas of health care, anthropology, nutrition, child development, biology, gerontology, psychology, and sociology, among others. Consequently, the stories provided are rich and well-rounded and the theories and findings can be part of a collaborative effort to understand human lives.

The main goals of those involved in studying human development are to describe and explain changes. Throughout this course, we will describe observations during development, then examine how theories provide explanations for why these changes occur. For example, you may observe two-year-old children be particularly temperamental, and researchers offer theories to explain why that is. We’ll learn a lot more about theories, especially developmental theories, in the next module.

What you’ll learn to do: describe the theories of lifespan development

Graphic of a brain filled with emojis and random objects

Learning outcomes

Describe theories as they relate to lifespan development
Explain Bronfenbrenner’s bioecological model
Contrast the main psychological theories that apply to human development

Understanding Theories

In l ifespan development, we need to rely on a systematic approach to understanding behavior, based on observable events and the scientific method. There are so many different observations about childhood, adulthood, and development in general that we use theories to help organize all of the different observable events or variables. A theory is a simplified explanation of the world that attempts to explain how variables interact with each other. It can take complex, interconnected issues and narrow them down to the essentials. This enables developmental theorists and researchers to analyze the problem in greater depth.

flowchart showing that a theory is used to form a hypothesis, the hypothesis leads to research, research leads to observation, which leads to the creation or modification of a theory, then back around.

Two key concepts in the scientific approach are theory and hypothesis. A theory is a well-developed set of ideas that propose an explanation for observed phenomena that can be used to make predictions about future observations. A hypothesis is a testable prediction that is arrived at logically from a theory. It is often worded as an if-then statement (e.g., if I study all night, I will get a passing grade on the test). The hypothesis is extremely important because it bridges the gap between the realm of ideas and the real world. As specific hypotheses are tested, theories are modified and refined to reflect and incorporate the result of these tests. In essence, lifespan theories explain observable events in a meaningful way. They are not as specific as hypotheses, which are so specific that we use them to make predictions in research. Theories offer more general explanations about behavior and events.

Think of theories are guidelines much like directions that come with an appliance or other object that required assembly. The instructions can help one piece together smaller parts more easily than if trial and error are used.

Theories can be developed using induction, in which a number of single cases are observed and after patterns or similarities are noted, the theorist develops ideas based on these examples. Established theories are then tested through research; however, not all theories are equally suited to scientific investigation. Some theories are difficult to test but are still useful in stimulating debate or providing concepts that have practical application. Keep in mind that theories are not facts; they are guidelines for investigation and practice, and they gain credibility through research that fails to disprove them.

People who study lifespan development approach it from different perspectives. Each perspective encompasses one or more theories—the broad, organized explanations and predictions concerning phenomena of interest. Theories of development provide a framework for thinking about human growth, development, and learning. If you have ever wondered about what motivates human thought and behavior, understanding these theories can provide useful insight into individuals and society.

Throughout psychological history and still in the present day, three key issues remain among which developmental theorists often disagree. Particularly oft-disputed is the role of early experiences on later development in opposition to current behavior reflecting present experiences–namely the passive versus active issue . Likewise, whether or not development is best viewed as occurring in stages or rather as a gradual and cumulative process of change has traditionally been up for debate – a question of continuity versus discontinuity. Further, the role of heredity and the environment in shaping human development is a much-contested topic of discussion – also referred to as the nature/nurture debate .

Is Development Continuous or Discontinuous?

Continuous development views development as a cumulative process, gradually improving on existing skills (Figure 2). With this type of development, there is a gradual change. Consider, for example, a child’s physical growth: adding inches to their height year by year. In contrast, theorists who view development as discontinuous believe that development takes place in unique stages and that it occurs at specific times or ages. With this type of development, the change is more sudden, such as an infant’s ability to demonstrate awareness of object permanence (which is a cognitive skill that develops toward the end of infancy, according to Piaget’s cognitive theory—more on that theory in the next module).

Continuous and Discontinuous development are shown side by side using two separate pictures. The first picture is a triangle labeled “Continuous Development” which slopes upward from Infancy to Adulthood in a straight line. The second picture is 4 bars side by side labeled “Discontinuous Development” which get higher from Infancy to Adulthood. These bars resemble a staircase.

Is There One Course of Development or Many?

Is development essentially the same, or universal, for all children (i.e., there is one course of development) or does development follow a different course for each child, depending on the child’s specific genetics and environment (i.e., there are many courses of development)? Do people across the world share more similarities or more differences in their development? How much do culture and genetics influence a child’s behavior?

Stage theories hold that the sequence of development is universal. For example, in cross-cultural studies of language development, children from around the world reach language milestones in a similar sequence (Gleitman & Newport, 1995). Infants in all cultures coo before they babble. They begin babbling at about the same age and utter their first word around 12 months old. Yet we live in diverse contexts that have a unique effect on each of us. For example, researchers once believed that motor development followed one course for all children regardless of culture. However, childcare practices vary by culture, and different practices have been found to accelerate or inhibit the achievement of developmental milestones such as sitting, crawling, and walking (Karasik, Adolph, Tamis-LeMonda, & Bornstein, 2010).

For instance, let’s look at the Aché society in Paraguay. They spend a significant amount of time foraging in forests. While foraging, Aché mothers carry their young children, rarely putting them down in order to protect them from getting hurt in the forest. Consequently, their children walk much later: They walk around 23–25 months old, in comparison to infants in Western cultures who begin to walk around 12 months old. However, as Aché children become older, they are allowed more freedom to move about, and by about age 9, their motor skills surpass those of U.S. children of the same age: Aché children are able to climb trees up to 25 feet tall and use machetes to chop their way through the forest (Kaplan & Dove, 1987). As you can see, our development is influenced by multiple contexts, so the timing of basic motor functions may vary across cultures. However, the functions are present in all societies.

Photograph A shows two children wearing inner tubes playing in the shallow water at the beach. Photograph B shows two children playing in the sand at a beach.

How Do Nature and Nurture Influence Development?

Are we who we are because of nature (biology and genetics), or are we who we are because of nurture (our environment and culture)? This longstanding question is known in psychology as the nature versus nurture debate. It seeks to understand how our personalities and traits are the product of our genetic makeup and biological factors, and how they are shaped by our environment, including our parents, peers, and culture. For instance, why do biological children sometimes act like their parents—is it because of genetics or because of early childhood environment and what the child has learned from their parents? What about children who are adopted—are they more like their biological families or more like their adoptive families? And how can siblings from the same family be so different?

We are all born with specific genetic traits inherited from our parents, such as eye color, height, and certain personality traits. Beyond our basic genotype, however, there is a deep interaction between our genes and our environment. Our unique experiences in our environment influence whether and how particular traits are expressed, and at the same time, our genes influence how we interact with our environment (Diamond, 2009; Lobo, 2008). There is a reciprocal interaction between nature and nurture as they both shape who we become, but the debate continues as to the relative contributions of each.

History of Developmental Psychology

Photograph of early psychologists, including Freud and Hall.

The scientific study of children began in the late nineteenth century and blossomed in the early twentieth century as pioneering psychologists sought to uncover the secrets of human behavior by studying its development.

Early scholars John Locke and Charles Darwin proposed theories of human behavior that are the “direct ancestors of some major theoretical traditions” of developmental psychology today(Vasta et al., 1998, p. 10). Locke, a British empiricist, adhered to a strict environmentalist position. He saw the newborn’s mind as a tabula rasa (“blank slate”) on which knowledge is written through experience and learning. Finally, the work of Darwin, the British biologist famous for his theory of evolution, led others to suggest that development proceeds through evolutionary recapitulation, with many human behaviors having their origins in successful adaptations in the past.

John B. Watson

The 20th century marked the formation of qualitative distinctions between children and adults. When John Watson wrote the book Psychological Care of Infant and Child in 1928, he sought to add clarification surrounding behaviorists’ views on child care and development. Watson was the founder of the field of behaviorism, which emphasized the role of nurture, or the environment, in human development. He believed, based on Locke’s environmentalist position, that human behavior can be understood in terms of experiences and learning. He believed that all behaviors are learned, or conditioned, as evidenced by his famous “Little Albert” study, in which he conditioned an infant to fear a white rat. In Watson’s book on the care of the infant and child, Watson explained that children should be treated as a young adult—with respect, but also without emotional attachment. In the book, he warned against the inevitable dangers of a mother providing too much love and affection. Watson explained that love, along with everything else as the behaviorist saw the world, is conditioned. Watson supported his warnings by mentioning invalidism, saying that society does not overly comfort children as they become young adults in the real world, so parents should not set up these unrealistic expectations. His book became highly criticized but was still influential in promoting more research into early childhood behavior and development.

Sigmund Freud

Another name you are probably familiar with who was influential in the study of human development is Sigmund Freud. Sigmund Freud’s model of “psychosexual development” grew out of his psychoanalytic approach to human personality and psychopathology. In sharp contrast to the objective approach espoused by Watson, Freud based his model of child development on his own and his patients’ recollections of their childhood. He developed a stage model of development in which the libido, or sexual energy, of the child, focuses on different “zones” or areas of the body as the child grows to adulthood. Freud’s model is an “interactionist” one since he believed that although the sequence and timing of these stages are biologically determined, successful personality development depends on the experiences the child has during each stage. Although the details of Freud’s developmental theory have been widely criticized, his emphasis on the importance of early childhood experiences, prior to five years of age, has had a lasting impact.

Freud emphasized the importance of early childhood experiences in shaping our personality and behavior. In our natural state, we are biological beings. We are driven primarily by instincts. During childhood, however, we begin to become social beings as we learn how to manage our instincts and transform them into socially acceptable behaviors. The type of parenting the child receives has a very powerful impact on the child’s personality development. We will explore this idea further in our discussion of psychosexual development, but first, we must identify the parts of the “self” in Freud’s model, or in other words, what constitutes a person’s personality and makes us who we are.

Jean Piaget

Jean Piaget (1896-1980) is considered one of the most influential psychologists of the twentieth century, and his stage theory of cognitive development revolutionized our view of children’s thinking and learning. His work inspired more research than any other theorist, and many of his concepts are still foundational to developmental psychology. His interest lay in children’s knowledge, their thinking, and the qualitative differences in their thinking as it develops. Although he called his field “genetic epistemology,” stressing the role of biological determinism, he also assigned great importance to experience. In his view, children “construct” their knowledge through processes of “assimilation,” in which they evaluate and try to understand new information, based on their existing knowledge of the world, and “accommodation,” in which they expand and modify their cognitive structures based on new experiences.

Modern developmental psychology generally focuses on how and why certain modifications throughout an individual’s life-cycle (cognitive, social, intellectual, personality) and human growth change over time. There are many theorists that have made, and continue to make, a profound contribution to this area of psychology, amongst whom is Erik Erikson who developed a model of eight stages of psychological development. He believed that humans developed in stages throughout their lifetimes and this would affect their behaviors. In this module, we’ll examine some of these major theories and contributions made by prominent psychologists.

Bronfenbrenner’s Ecological Systems Theory

Another psychologist who recognized the importance of the environment on development was American psychologist, Urie Bronfenbrenner (1917-2005), who formulated the ecological systems theory to explain how the inherent qualities of a child and their environment interact to influence how they will grow and develop. The term “ecological” refers to a natural environment; human development is understood through this model as a long-lasting transformation in the way one perceives and deals with the environment. Bronfenbrenner’s ecological theory stresses the importance of studying children in the context of multiple environments because children typically find themselves enmeshed simultaneously in different ecosystems. Each of these systems inevitably interact with and influence each other in every aspect of the child’s life, from the most intimate level to the broadest. Furthermore, he eventually renamed his theory the bioecological model in order to recognize the importance of biological processes in development. However, he only recognized biology as producing a person’s potential, with this potential being realized or not via environmental and social forces.

An individual is impacted by microsystems such as parents or siblings; those who have direct, significant contact with the person. The input of those people is modified by the cognitive and biological state of the individual as well. These influence the person’s actions, which in turn influence systems operating on them. The mesosystem includes larger organizational structures such as school, the family, or religion. These institutions impact the microsystems just described. For example, the religious teachings and traditions of a family may create a climate that makes the family feel stigmatized and this indirectly impacts the child’s view of themselves and others. The philosophy of the school system, daily routine, assessment methods, and other characteristics can affect the child’s self-image, growth, sense of accomplishment, and schedule, thereby impacting the child physically, cognitively, and emotionally. These mesosystems both influence and are influenced by the larger contexts of the community, referred to as the exosystem . A community’s values, history, and economy can impact the organizational structures it houses. And the community is influenced by macrosystems , which are cultural elements such as global economic conditions, war, technological trends, values, philosophies, and a society’s responses to the global community. In sum, a child’s experiences are shaped by larger forces such as the family, school, religion, and culture. All of this occurs within the relevant historical context and timeframe, or chronosystem . The chronosystem is made up of the environmental events and transitions that occur throughout a child’s life, including any socio-historical events. This system consists of all the experiences that a person has had during their lifetime.

Image of Brofenbrenner's system, displayed as a target. In the center circle is an individual, then the microsystem, the mesosystem, the exosystem, and the macrosystem.

Comparing and Evaluating Lifespan Theories

Developmental theories provide a set of guiding principles and concepts that describe and explain human development. Some developmental theories focus on the formation of a particular quality, such as Piaget’s theory of cognitive development. Other developmental theories focus on growth that happens throughout the lifespan, such as Erikson’s theory of psychosocial development. It would be natural to wonder which of the perspectives provides the most accurate account of human development, but clearly, each perspective is based on its own premises and focuses on different aspects of development. Many lifespan developmentalists use an eclectic approach, drawing on several perspectives at the same time because the same developmental phenomenon can be looked at from a number of perspectives.

In the table below, we’ll review some of the major theories that you learned about in your introductory course and others that we will cover throughout this text. Recall that three key issues considered in human development examine if development is continuous or discontinuous, if it is the same for everyone or distinct for individuals (one course of development or many), and if development is more influenced by nature or by nurture. The table below reviews how each of these major theories approaches each of these issues.

Periods of Human Development

Think about the lifespan and make a list of what you would consider the basic periods of development. How many periods or stages are on your list? Perhaps you have three: childhood, adulthood, and old age. Or maybe four: infancy, childhood, adolescence, and adulthood. Developmentalists often break the lifespan into nine stages:

Prenatal Development
Infancy and Toddlerhood
Early Childhood
Middle Childhood
Adolescence
Emerging Adulthood
Early Adulthood
Middle Adulthood
Late Adulthood

In addition, the topic of “Death and Dying” is usually addressed after late adulthood since overall, the likelihood of dying increases in later life (though individual and group variations exist). Death and dying will be the topic of our second to last module, though it is not necessarily a stage of development that occurs at a particular age. Our last module will cover grief and bereavement.

The list of the periods of development reflects unique aspects of the various stages of childhood and adulthood that will be explored in this book, including physical, cognitive, and psychosocial changes. So while both an 8-month-old and an 8-year-old are considered children, they have very different motor abilities, cognitive skills, and social relationships. Their nutritional needs are different, and their primary psychological concerns are also distinctive. The same is true of an 18-year-old and an 80-year-old, both considered adults. We will discover the distinctions between being 28 or 48 as well. But first, here is a brief overview of the stages.

Think about your own development. Which period or stage of development are you in right now? Are you dealing with similar issues and experiencing comparable physical, cognitive, and psychosocial development as described above? If not, why not? Are important aspects of development missing and if so, are they common for most of your cohort or unique to you?

What you’ll learn to do: explain the lifespan perspective

Several people walking down a street shown from above

As we have learned, human development refers to the physical, cognitive, and psychosocial changes and constancies in humans over time. There are various theories pertaining to each domain of development, and often theorists and researchers focus their attention on specific periods of development (with most traditionally focusing on infancy and childhood; some on adolescence). But isn’t it possible that development during one period affects development in other periods and that humans can grow and change across adulthood too? In this section, we’ll learn about development through the lifespan perspective, which emphasizes the multidimensional, interconnected, and ever-changing influences on development.

Describe Baltes’ lifespan perspective with its key principles about development
Explain what is meant by development being lifelong, multidimensional, and multidirectional
Explain contextual influences on development

The Lifespan Perspective

Lifespan development involves the exploration of biological, cognitive, and psychosocial changes and constancies that occur throughout the entire course of life. It has been presented as a theoretical perspective, proposing several fundamental, theoretical, and methodological principles about the nature of human development. An attempt by researchers has been made to examine whether research on the nature of development suggests a specific metatheoretical worldview. Several beliefs, taken together, form the “family of perspectives” that contribute to this particular view.

German psychologist Paul Baltes, a leading expert on lifespan development and aging, developed one of the approaches to studying development called the lifespan perspective . This approach is based on several key principles:

Development occurs across one’s entire life or is lifelong.
Development is multidimensional, meaning it involves the dynamic interaction of factors like physical, emotional, and psychosocial development
Development is multidirectional and results in gains and losses throughout life
Development is plastic , meaning that characteristics are malleable or changeable.
Development is influenced by contextual and socio-cultural influences.
Development is multidisciplinary.

Development is lifelong

Lifelong development means that development is not completed in infancy or childhood or at any specific age; it encompasses the entire lifespan, from conception to death. The study of development traditionally focused almost exclusively on the changes occurring from conception to adolescence and the gradual decline in old age; it was believed that the five or six decades after adolescence yielded little to no developmental change at all. The current view reflects the possibility that specific changes in development can occur later in life, without having been established at birth. The early events of one’s childhood can be transformed by later events in one’s life. This belief clearly emphasizes that all stages of the lifespan contribute to the regulation of the nature of human development.

Many diverse patterns of change, such as direction, timing, and order, can vary among individuals and affect the ways in which they develop. For example, the developmental timing of events can affect individuals in different ways because of their current level of maturity and understanding. As individuals move through life, they are faced with many challenges, opportunities, and situations that impact their development. Remembering that development is a lifelong process helps us gain a wider perspective on the meaning and impact of each event.

Development is multidimensional

By multidimensionality, Baltes is referring to the fact that a complex interplay of factors influence development across the lifespan, including biological, cognitive, and socioemotional changes. Baltes argues that a dynamic interaction of these factors is what influences an individual’s development.

For example, in adolescence, puberty consists of physiological and physical changes with changes in hormone levels, the development of primary and secondary sex characteristics, alterations in height and weight, and several other bodily changes. But these are not the only types of changes taking place; there are also cognitive changes, including the development of advanced cognitive faculties such as the ability to think abstractly. There are also emotional and social changes involving regulating emotions, interacting with peers, and possibly dating. The fact that the term puberty encompasses such a broad range of domains illustrates the multidimensionality component of development (think back to the physical, cognitive, and psychosocial domains of human development we discussed earlier in this module).

Development is multidirectional

Baltes states that the development of a particular domain does not occur in a strictly linear fashion but that the development of certain traits can be characterized as having the capacity for both an increase and decrease in efficacy over the course of an individual’s life.

If we use the example of puberty again, we can see that certain domains may improve or decline in effectiveness during this time. For example, self-regulation is one domain of puberty that undergoes profound multidirectional changes during the adolescent period. During childhood, individuals have difficulty effectively regulating their actions and impulsive behaviors. Scholars have noted that this lack of effective regulation often results in children engaging in behaviors without fully considering the consequences of their actions. Over the course of puberty, neuronal changes modify this unregulated behavior by increasing the ability to regulate emotions and impulses. Inversely, the ability for adolescents to engage in spontaneous activity and creativity, both domains commonly associated with impulse behavior, decrease over the adolescent period in response to changes in cognition. Neuronal changes to the limbic system and prefrontal cortex of the brain, which begin in puberty lead to the development of self-regulation, and the ability to consider the consequences of one’s actions (though recent brain research reveals that this connection will continue to develop into early adulthood).

Extending on the premise of multidirectionality, Baltes also argued that development is influenced by the “joint expression of features of growth (gain) and decline (loss)”. This relation between developmental gains and losses occurs in a direction to selectively optimize particular capacities. This requires the sacrificing of other functions, a process known as selective optimization with compensation. According to the process of selective optimization, individuals prioritize particular functions above others, reducing the adaptive capacity of particulars for specialization and improved efficacy of other modalities.

The acquisition of effective self-regulation in adolescents illustrates this gain/loss concept. As adolescents gain the ability to effectively regulate their actions, they may be forced to sacrifice other features to selectively optimize their reactions. For example, individuals may sacrifice their capacity to be spontaneous or creative if they are constantly required to make thoughtful decisions and regulate their emotions. Adolescents may also be forced to sacrifice their fast reaction times toward processing stimuli in favor of being able to fully consider the consequences of their actions.

Development is plastic

Plasticity denotes intrapersonal variability and focuses heavily on the potentials and limits of the nature of human development. The notion of plasticity emphasizes that there are many possible developmental outcomes and that the nature of human development is much more open and pluralistic than originally implied by traditional views; there is no single pathway that must be taken in an individual’s development across the lifespan. Plasticity is imperative to current research because the potential for intervention is derived from the notion of plasticity in development. Undesired development or behaviors could potentially be prevented or changed.

As an example, recently researchers have been analyzing how other senses compensate for the loss of vision in blind individuals. Without visual input, blind humans have demonstrated that tactile and auditory functions still fully develop and they can use tactile and auditory cues to perceive the world around them. One experiment designed by Röder and colleagues (1999) compared the auditory localization skills of people who are blind with people who are sighted by having participants locate sounds presented either centrally or peripherally (lateral) to them. Both congenitally blind adults and sighted adults could locate a sound presented in front of them with precision but people who are blind were clearly superior in locating sounds presented laterally. Currently, brain-imaging studies have revealed that the sensory cortices in the brain are reorganized after visual deprivation. These findings suggest that when vision is absent in development, the auditory cortices in the brain recruit areas that are normally devoted to vision, thus becoming further refined.

A significant aspect of the aging process is cognitive decline. The dimensions of cognitive decline are partially reversible, however, because the brain retains the lifelong capacity for plasticity and reorganization of cortical tissue. Mahncke and colleagues developed a brain plasticity-based training program that induced learning in mature adults experiencing an age-related decline. This training program focused intensively on aural language reception accuracy and cognitively demanding exercises that have been proven to partially reverse the age-related losses in memory. It included highly rewarding novel tasks that required attention control and became progressively more difficult to perform. In comparison to the control group, who received no training and showed no significant change in memory function, the experimental training group displayed a marked enhancement in memory that was sustained at the 3-month follow-up period. These findings suggest that cognitive function, particularly memory, can be significantly improved in mature adults with age-related cognitive decline by using brain plasticity-based training methods.

Development is contextual

In Baltes’ theory, the paradigm of contextualism refers to the idea that three systems of biological and environmental influences work together to influence development. Development occurs in context and varies from person to person, depending on factors such as a person’s biology, family, school, church, profession, nationality, and ethnicity. Baltes identified three types of influences that operate throughout the life course: normative age-graded influences, normative history-graded influences, and nonnormative influences. Baltes wrote that these three influences operate throughout the life course, their effects accumulate with time, and, as a dynamic package, they are responsible for how lives develop.

Normative age-graded influences are those biological and environmental factors that have a strong correlation with chronological age, such as puberty or menopause, or age-based social practices such as beginning school or entering retirement. Normative history-graded influences are associated with a specific time period that defines the broader environmental and cultural context in which an individual develops. For example, development and identity are influenced by historical events of the people who experience them, such as the Great Depression, WWII, Vietnam, the Cold War, the War on Terror, or advances in technology.

This has been exemplified in numerous studies, including Nesselroade and Baltes’, showing that the level and direction of change in adolescent personality development was influenced as strongly by the socio-cultural settings at the time (in this case, the Vietnam War) as age-related factors. The study involved individuals of four different adolescent age groups who all showed significant personality development in the same direction (a tendency to occupy themselves with ethical, moral, and political issues rather than cognitive achievement). Similarly, Elder showed that the Great Depression was a setting that significantly affected the development of adolescents and their corresponding adult personalities, by showing a similar common personality development across age groups. Baltes’ theory also states that the historical socio-cultural setting had an effect on the development of an individual’s intelligence. The areas of influence that Baltes thought most important to the development of intelligence were health, education, and work. The first two areas, health and education, significantly affect adolescent development because healthy children who are educated effectively will tend to develop a higher level of intelligence. The environmental factors, health and education, have been suggested by Neiss and Rowe to have as much effect on intelligence as inherited intelligence.

Nonnormative influences are unpredictable and not tied to a certain developmental time in a person’s development or to a historical period. They are the unique experiences of an individual, whether biological or environmental, that shape the development process. These could include milestones like earning a master’s degree or getting a certain job offer or other events like going through a divorce or coping with the death of a child.

The most important aspect of contextualism as a paradigm is that the three systems of influence work together to affect development. Concerning adolescent development, the age-graded influences would help to explain the similarities within a cohort, the history-graded influences would help to explain the differences between cohorts, and the nonnormative influences would explain the idiosyncrasies of each adolescent’s individual development. When all influences are considered together, it provides a broader explanation of an adolescent’s development.

Other Contextual Influences on Development: Cohort, Socioeconomic Status, and Culture

What is meant by the word “context”? It means that we are influenced by when and where we live. Our actions, beliefs, and values are a response to the circumstances surrounding us. Sternberg describes contextual intelligence as the ability to understand what is called for in a situation (Sternberg, 1996). The key here is to understand that behaviors, motivations, emotions, and choices are all part of a bigger picture. Our concerns are such because of who we are socially, where we live, and when we live; they are part of a social climate and set of realities that surround us. Important social factors include cohort, social class, gender, race, ethnicity, and age. Let’s begin by exploring two of these: cohort and social class.

A cohort is a group of people who are born at roughly the same time period in a particular society. Cohorts share histories and contexts for living. Members of a cohort have experienced the same historical events and cultural climates which have an impact on the values, priorities, and goals that may guide their lives.

Another context that influences our lives is our social standing, socioeconomic status, or social class. Socioeconomic status is a way to identify families and households based on their shared levels of education, income, and occupation. While there is certainly individual variation, members of a social class tend to share similar lifestyles, patterns of consumption, parenting styles, stressors, religious preferences, and other aspects of daily life.

Culture is often referred to as a blueprint or guideline shared by a group of people that specifies how to live. It includes ideas about what is right and wrong, what to strive for, what to eat, how to speak, what is valued, as well as what kinds of emotions are called for in certain situations. Culture teaches us how to live in a society and allows us to advance because each new generation can benefit from the solutions found and passed down from previous generations.

Culture is learned from parents, schools, churches, media, friends, and others throughout a lifetime. The kinds of traditions and values that evolve in a particular culture serve to help members function in their own society and to value their own society. We tend to believe that our own culture’s practices and expectations are the right ones. This belief that our own culture is superior is called ethnocentrism and is a normal by-product of growing up in a culture. It becomes a roadblock, however, when it inhibits understanding of cultural practices from other societies. Cultural relativity is an appreciation for cultural differences and the understanding that cultural practices are best understood from the standpoint of that particular culture.

Culture is an extremely important context for human development and understanding development requires being able to identify which features of development are culturally based. This understanding is somewhat new and still being explored. So much of what developmental theorists have described in the past has been culturally bound and difficult to apply to various cultural contexts. For example, Erikson’s theory that teenagers struggle with identity assumes that all teenagers live in a society in which they have many options and must make an individual choice about their future. In many parts of the world, one’s identity is determined by family status or society’s dictates. In other words, there is no choice to make.

Even the most biological events can be viewed in cultural contexts that are extremely varied. Consider two very different cultural responses to menstruation in young girls. In the United States, girls in public school often receive information on menstruation around 5th grade, get a kit containing feminine hygiene products, and receive some sort of education about sexual health. Contrast this with some developing countries where menstruation is not publicly addressed, or where girls on their period are forced to miss school due to limited access to feminine products or unjust attitudes about menstruation.

Development is Multidisciplinary

Any single discipline’s account of development across the lifespan would not be able to express all aspects of this theoretical framework. That is why it is suggested explicitly by lifespan researchers that a combination of disciplines is necessary to understand development. Psychologists, sociologists, neuroscientists, anthropologists, educators, economists, historians, medical researchers, and others may all be interested and involved in research related to the normative age-graded, normative history-graded, and nonnormative influences that help shape development. Many disciplines are able to contribute important concepts that integrate knowledge, which may ultimately result in the formation of a new and enriched understanding of development across the lifespan.

Consider your cohort. Can you identify it? Does it have a name and if so, what does the name imply? To what extent does your cohort shape your values, thoughts, and aspirations? (Some cohort labels popularized in the media for generations in the United States include Baby Boomers, Generation X, Millennials, and Generation Z.)
Think of other ways culture may have affected your development. How might cultural differences influence interactions between teachers and students, nurses and patients, or other relationships?

Additional Supplemental Resources

Want to participate in a study? Click on a link that sounds interesting to you in order to participate in online research
U.S. Census Data is available and widely used to look at trends and changes taking place in the United States
KFF is an endowed, nonprofit organization filling the need for trusted, independent information on national health issues.
SRCD launched a project to increase the visibility of leading developmental scientists of color who have made critical research contributions and paved the way, through mentoring and advocacy, for younger scholars of color.
This video gives a summary of Piaget’s theory and his four stages of cognitive development.
This video summarizes Erikson’s theory of psychosocial development which identifies eight stages in which a healthy individual should pass through from birth to death.
This video on research methods covers the different categories of psychological research including observational studies and experiments. Closed captioning available.

How to Age Gracefully

People of all ages offer words of wisdom to their younger counterparts in this WireTap video, from CBC Radio One. It is a great overview of the journey we will take through the lifespan.

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The Lifespan Development Perspective Essay

Introduction, the lifespan perspective of development, conclusions, reference list.

Lifespan development is a progressive process of development in a human being involving an increase in age, which begins at conception and ends with death (Sugarman, 2000, p. 56). In addition, lifespan development can be divided into four levels depicting advanced functionality and character changes as an individual moves from one level to another.

These levels include childhood and adolescence; early adulthood; middle adulthood; and late adulthood (Sugarman, 2000, p. 56). This paper presents discussions on the lifespan perspective of development and two major theories of lifespan development. In addition, the impact of the interaction between genes and the environment on the process of human development is also discussed.

The lifespan perspective examines the changes that take place at each level of human development relative to the environmental (Society and culture) factors that influence these changes (Sigelman & Rider, 2008, p. 84). Moreover, the lifespan perspective can be defined in many ways.

For instance, the lifespan perspective can be a progressive and lifelong process of development that is not limited to any single level in human development. On the other hand, there are three major aspects of the lifespan perspective of development, which include the cognitive, social, physical dimensions of change (Sugarman, 2000, p. 59).

Furthermore, other studies claim that the perspective is plastic in nature because some domains of lifespan development increase while others decrease. This plasticity of the lifespan perspective occurs in response to various environmental factors that influence human development.

In addition, the perspective is embedded in the lifelong events that occur in the life of an individual. Thus, this perspective is studied by scientists, anthropologists, and psychologists, which brings out its multidisciplinary nature (Sugarman, 2000, p. 63). On the other hand, the perspective has different contextual implications. Therefore, human development is determined by biological, cultural, social, and physical environmental factors.

The three aspects of the lifespan perspective are also implicated in different developmental changes. The physical aspect of development involves changes in weight, height, shape, and the changes in individual experiences with the external environment (Sigelman & Rider, 2008, p. 86).

On the other hand, the social aspect of development involves changes in different phases of human development, which are directly influenced by the social environment such as social skills and relationships. Lastly, the cognitive domain of human development entails change in an individual’s thinking capacity, memory, and decision-making (Sugarman, 2000, p. 64).

The changes characterizing the lifespan perspective of development can also be divided into eight stages of human development. The first stage also known as the Trust vs. Mistrust stage occurs during the period between birth and one year.

Here, development of trust depends on the relationship between the toddler and the care-giver (Sugarman, 2000, p. 66). The second stage also known as Autonomy vs. Shame and Doubt period occurs during the early childhood stage. During this stage, the child is capable of making choices relative to the individualized willingness.

The Initiative vs. Guilt is the third stage in development, which occurs during the middle childhood stage. During this stage, children develop a sense of purpose through engaging in goal-oriented activities (Sigelman & Rider, 2008, p. 88). The fourth stage also called the Industry vs. Inferiority period occurs at the late childhood period. Here, children develop competence through learning social norms, basic education, and culture.

Additionally, the adolescence stage signifies the Identity vs. Role Confusion period. Here, individual values and choices develop because individuals are able to account for their actions. The Intimacy vs. Isolation period occurs during early adulthood and it is characterized by development of intimate relationships, marriage, and families (Sigelman & Rider, 2008, p. 90).

The Generativity vs. Stagnation period occurs during the middle adulthood stage. Here, individuals are committed with providing for their families and developing their careers. Lastly, the Integrity vs. Despair stage occurs during the late adulthood stage. The elderly individuals are self-contented and they are full of life experiences and advice.

Theories of Lifespan Development

There are many theories that attempt to explain the process of human development from different perspectives such as Freud’s theory of psychosexual development and Erikson’s theory on psychosocial development. Erikson’s theory posits that an individual encounters several conflicts during the development process, which depend on the type of relationship existing between this individual and the society.

Therefore, as an individual moves through the eight stages of development discussed above, he/she must solve the conflicts involved in one stage before moving to another. This ensures that one develops a sound personality; otherwise one may encounter difficulties in addressing conflicts in subsequent stages if the previous ones were not sufficiently resolved (Sugarman, 2000).

On the other hand, Freud’s theory states that the process of personality development occurs at the early childhood stage. Subsequently, the behavioral changes observed in developing individuals are influenced by the childhood events. Here, personality development occurs through several stages during the early childhood stage.

During this stage, the pleasure-oriented capabilities of an individual become focused on specific areas in one’s body. These capabilities also known as sexual libido or psychosexual energy play a major role in the subsequent behavioral changes in an individual (Sigelman & Rider, 2008).

Thus, if all the issues involved in the psychosexual stages of development are adequately resolved, then an individual develops a sound personality. However, if the psychosexual issues remain unresolved, the person involved is trapped in a particular stage until all the issues are resolved.

The Interaction of Genes and the Environment in Lifespan Development

A child inherits the genetic information of both parents through the information carriers known as genes. The genes are made up of DNA, which is found on chromosomes. On the other hand, the environment in the context of lifespan development refers to the total social and cultural factors surrounding a developing human being (Sigelman & Rider, 2008, p. 86). Therefore, lifespan development in children depends on two major factors; the genetic make-up of a child and the environmental factors.

However, the two factors can play a mutual role in influencing the development of different individuals in the society. Here, the epigenetic framework of development posits that the genetic make-up can be turned on and off relative to the internal and external environmental feedback (Sigelman & Rider, 2008, p. 89).

This gives the process of lifespan development the flexibility and plasticity described in the discussions above. For instance, the learning process in children follows a specific pattern of adaptability, which depends on the internal and external factors.

Therefore, during the early childhood stage, individuals use the environmental experiences in reasoning and acting. However, as the environmental factors and experiences change along the period of lifespan development, so does the emotional, reasoning, and social attributes in an individual (Sigelman & Rider, 2008, p. 91).

The paper presents discussions on the lifespan perspective of development, the theories of lifespan development and the interaction of heredity and environment to produce individual differences in development.

From the discussions above, the lifespan perspective of development examines the changes that occur in different individuals, which occur due to the interaction of the genetic make-up and the total circumstances surrounding an individual. On the other hand, this perspective is also reinforced by Freud’s theory of psychosexual development and Erikson’s theory of psychosocial development, which are summarized in the discussions above.

Sigelman, C. K. & Rider, E. A. (2008). Lifespan human development. New York: Cengage Learning Publishers, Inc.

Sugarman, L. (2000). Lifespan development: Frameworks, accounts and strategies (2 nd ed.). New York: Routledge.

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Bibliography

IvyPanda . "The Lifespan Development Perspective." March 13, 2024. https://ivypanda.com/essays/the-lifespan-perspective-of-development/.

Psychosexual Disorder in Female Gender and the Normal Sexual Functioning
Sigmund Freud: Theory of Psychosexual Development Analysis
Psychosexual Development Stages
Freudian Psycho-Sexual Stages on Adult Characteristics
Cognitive, Psychosocial, Psychosexual and Moral Development
Developmental Psychologist Biography: Erik Erikson
Freud vs. Erikson on the Development Stages
Freud's Psychosexual Stage Conception
Lifespan Development and Its Theories
Developmental Differences in Memory Over Lifespan
Development Stages in Infant-Father Relationship
The role of genetics in development
Erik Erikson's Life and Contributions to Psychoanalysis
Developmental Theories in Psychology
Levels of Play Development

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Ch 3: Lifespan Development

A picture shows two intertwined hands. One is the large hand of an adult, and the other is the tiny hand of an infant. The infant’s entire hand grasp is about the size of a single adult finger.

Welcome to the story of your life. In this chapter, we will explore the fascinating tale of how you have grown and developed into the person you are today. We will also look at some ideas about who you will grow into tomorrow. Yours is a story of lifespan development (Figure 1), from the start of life to the end.

The process of human growth and development is more obvious in infancy and childhood, yet your development is happening this moment and will continue, minute by minute, for the rest of your life. Who you are today and who you will be in the future depends on a blend of genetics, environment, culture, relationships, and more, as you continue through each phase of life. You have experienced firsthand much of what is discussed in this chapter. Now consider what psychological science has to say about your physical, cognitive, and psychosocial development, from the womb to the tomb.

Theories of Development

There are many theories regarding how babies and children grow and develop into happy, healthy adults. Sigmund Freud suggested that we pass through a series of psychosexual stages in which our energy is focused on certain erogenous zones on the body. Eric Erikson modified Freud’s ideas and suggested a theory of psychosocial development. Erikson said that our social interactions and successful completion of social tasks shape our sense of self. Jean Piaget proposed a theory of cognitive development that explains how children think and reason as they move through various stages. Finally, Lawrence Kohlberg turned his attention to moral development. He said that we pass through three levels of moral thinking that build on our cognitive development. You’ll learn about each of these theories in this section.

Learning Objectives

Describe the three major issues in development: continuity and discontinuity, one common course of development or many unique courses of development, and nature versus nurture

What Is Lifespan Development?

My heart leaps up when I behold A rainbow in the sky: So was it when my life began; So is it now I am a man; So be it when I shall grow old, Or let me die! The Child is father of the Man; And I could wish my days to be Bound each to each by natural piety. (Wordsworth, 1802)

In this poem, William Wordsworth writes, “the child is father of the man.” What does this seemingly incongruous statement mean, and what does it have to do with lifespan development? Wordsworth might be suggesting that the person he is as an adult depends largely on the experiences he had in childhood. Consider the following questions: To what extent is the adult you are today influenced by the child you once were? To what extent is a child fundamentally different from the adult he grows up to be?

These are the types of questions developmental psychologists try to answer, by studying how humans change and grow from conception through childhood, adolescence, adulthood, and death. They view development as a lifelong process that can be studied scientifically across three developmental domains—physical, cognitive, and psychosocial development. Physical development involves growth and changes in the body and brain, the senses, motor skills, and health and wellness. Cognitive development involves learning, attention, memory, language, thinking, reasoning, and creativity. Psychosocial development involves emotions, personality, and social relationships. We refer to these domains throughout the module.

Connect the Concepts: Research Methods in Developmental Psychology

You’ve learned about a variety of research methods used by psychologists. Developmental psychologists use many of these approaches in order to better understand how individuals change mentally and physically over time. These methods include naturalistic observations, case studies, surveys, and experiments, among others.

Naturalistic observations involve observing behavior in its natural context. A developmental psychologist might observe how children behave on a playground, at a daycare center, or in the child’s own home. While this research approach provides a glimpse into how children behave in their natural settings, researchers have very little control over the types and/or frequencies of displayed behavior.

In a case study, developmental psychologists collect a great deal of information from one individual in order to better understand physical and psychological changes over the lifespan. This particular approach is an excellent way to better understand individuals, who are exceptional in some way, but it is especially prone to researcher bias in interpretation, and it is difficult to generalize conclusions to the larger population.

In one classic example of this research method being applied to a study of lifespan development Sigmund Freud analyzed the development of a child known as “Little Hans” (Freud, 1909/1949). Freud’s findings helped inform his theories of psychosexual development in children, which you will learn about later in this module. Little Genie, the subject of a case study discussed in the module on thinking and intelligence, provides another example of how psychologists examine developmental milestones through detailed research on a single individual. In Genie’s case, her neglectful and abusive upbringing led to her being unable to speak until, at age 13, she was removed from that harmful environment. As she learned to use language, psychologists were able to compare how her language acquisition abilities differed when occurring in her late-stage development compared to the typical acquisition of those skills during the ages of infancy through early childhood (Fromkin, Krashen, Curtiss, Rigler, & Rigler, 1974; Curtiss, 1981).

The survey method asks individuals to self-report important information about their thoughts, experiences, and beliefs. This particular method can provide large amounts of information in relatively short amounts of time; however, validity of data collected in this way relies on honest self-reporting, and the data is relatively shallow when compared to the depth of information collected in a case study.

Experiments involve significant control over extraneous variables and manipulation of the independent variable. As such, experimental research allows developmental psychologists to make causal statements about certain variables that are important for the developmental process. Because experimental research must occur in a controlled environment, researchers must be cautious about whether behaviors observed in the laboratory translate to an individual’s natural environment.

Later in this chapter, you will learn about several experiments in which toddlers and young children observe scenes or actions so that researchers can determine at what age specific cognitive abilities develop. For example, children may observe a quantity of liquid poured from a short, fat glass into a tall, skinny glass. As the experimenters question the children about what occurred, the subjects’ answers help psychologists understand at what age a child begins to comprehend that the volume of liquid remained the same although the shapes of the containers differs.

Across these three domains—physical, cognitive, and psychosocial—the normative approach to development is also discussed. This approach asks, “What is normal development?” In the early decades of the 20th century, normative psychologists studied large numbers of children at various ages to determine norms (i.e., average ages) of when most children reach specific developmental milestones in each of the three domains (Gesell, 1933, 1939, 1940; Gesell & Ilg, 1946; Hall, 1904). Although children develop at slightly different rates, we can use these age-related averages as general guidelines to compare children with same-age peers to determine the approximate ages they should reach specific normative events called developmental milestones (e.g., crawling, walking, writing, dressing, naming colors, speaking in sentences, and starting puberty).

Not all normative events are universal, meaning they are not experienced by all individuals across all cultures. Biological milestones, such as puberty, tend to be universal, but social milestones, such as the age when children begin formal schooling, are not necessarily universal; instead, they affect most individuals in a particular culture (Gesell & Ilg, 1946). For example, in developed countries children begin school around 5 or 6 years old, but in developing countries, like Nigeria, children often enter school at an advanced age, if at all (Huebler, 2005; United Nations Educational, Scientific, and Cultural Organization [UNESCO], 2013).

To better understand the normative approach, imagine two new mothers, Louisa and Kimberly, who are close friends and have children around the same age. Louisa’s daughter is 14 months old, and Kimberly’s son is 12 months old. According to the normative approach, the average age a child starts to walk is 12 months. However, at 14 months Louisa’s daughter still isn’t walking. She tells Kimberly she is worried that something might be wrong with her baby. Kimberly is surprised because her son started walking when he was only 10 months old. Should Louisa be worried? Should she be concerned if her daughter is not walking by 15 months or 18 months?

Link to Learning

Issues in developmental psychology, is development continuous or discontinuous.

Continuous development views development as a cumulative process, gradually improving on existing skills (Figure 2). With this type of development, there is gradual change. Consider, for example, a child’s physical growth: adding inches to her height year by year. In contrast, theorists who view development as discontinuous believe that development takes place in unique stages: It occurs at specific times or ages. With this type of development, the change is more sudden, such as an infant’s ability to conceive object permanence.

Is There One Course of Development or Many?

Stage theories hold that the sequence of development is universal. For example, in cross-cultural studies of language development, children from around the world reach language milestones in a similar sequence (Gleitman & Newport, 1995). Infants in all cultures coo before they babble. They begin babbling at about the same age and utter their first word around 12 months old. Yet we live in diverse contexts that have a unique effect on each of us. For example, researchers once believed that motor development follows one course for all children regardless of culture. However, child care practices vary by culture, and different practices have been found to accelerate or inhibit achievement of developmental milestones such as sitting, crawling, and walking (Karasik, Adolph, Tamis-LeMonda, & Bornstein, 2010).

How Do Nature and Nurture Influence Development?

Are we who we are because of nature (biology and genetics), or are we who we are because of nurture (our environment and culture)? This longstanding question is known in psychology as the nature versus nurture debate. It seeks to understand how our personalities and traits are the product of our genetic makeup and biological factors, and how they are shaped by our environment, including our parents, peers, and culture. For instance, why do biological children sometimes act like their parents—is it because of genetics or because of early childhood environment and what the child has learned from the parents? What about children who are adopted—are they more like their biological families or more like their adoptive families? And how can siblings from the same family be so different?

We are all born with specific genetic traits inherited from our parents, such as eye color, height, and certain personality traits. Beyond our basic genotype, however, there is a deep interaction between our genes and our environment: Our unique experiences in our environment influence whether and how particular traits are expressed, and at the same time, our genes influence how we interact with our environment (Diamond, 2009; Lobo, 2008). This module will show that there is a reciprocal interaction between nature and nurture as they both shape who we become, but the debate continues as to the relative contributions of each.

Dig Deeper: The Achievement Gap: How Does Socioeconomic Status Affect Development?

The achievement gap refers to the persistent difference in grades, test scores, and graduation rates that exist among students of different ethnicities, races, and—in certain subjects—sexes (Winerman, 2011). Research suggests that these achievement gaps are strongly influenced by differences in socioeconomic factors that exist among the families of these children. While the researchers acknowledge that programs aimed at reducing such socioeconomic discrepancies would likely aid in equalizing the aptitude and performance of children from different backgrounds, they recognize that such large-scale interventions would be difficult to achieve. Therefore, it is recommended that programs aimed at fostering aptitude and achievement among disadvantaged children may be the best option for dealing with issues related to academic achievement gaps (Duncan & Magnuson, 2005).

Low-income children perform significantly more poorly than their middle- and high-income peers on a number of educational variables: They have significantly lower standardized test scores, graduation rates, and college entrance rates, and they have much higher school dropout rates. There have been attempts to correct the achievement gap through state and federal legislation, but what if the problems start before the children even enter school?

Psychologists Betty Hart and Todd Risley (2006) spent their careers looking at early language ability and progression of children in various income levels. In one longitudinal study, they found that although all the parents in the study engaged and interacted with their children, middle- and high-income parents interacted with their children differently than low-income parents. After analyzing 1,300 hours of parent-child interactions, the researchers found that middle- and high-income parents talk to their children significantly more, starting when the children are infants. By 3 years old, high-income children knew almost double the number of words known by their low-income counterparts, and they had heard an estimated total of 30 million more words than the low-income counterparts (Hart & Risley, 2003). And the gaps only become more pronounced. Before entering kindergarten, high-income children score 60% higher on achievement tests than their low-income peers (Lee & Burkam, 2002).

There are solutions to this problem. At the University of Chicago, experts are working with low-income families, visiting them at their homes, and encouraging them to speak more to their children on a daily and hourly basis. Other experts are designing preschools in which students from diverse economic backgrounds are placed in the same classroom. In this research, low-income children made significant gains in their language development, likely as a result of attending the specialized preschool (Schechter & Byeb, 2007). What other methods or interventions could be used to decrease the achievement gap? What types of activities could be implemented to help the children of your community or a neighboring community?

Think It Over

How are you different today from the person you were at 6 years old? What about at 16 years old? How are you the same as the person you were at those ages?
Your 3-year-old daughter is not yet potty trained. Based on what you know about the normative approach, should you be concerned? Why or why not?

Lifespan Theories

Define Freud’s theory of psychosexual development
Describe the major tasks of child and adult psychosocial development according to Erikson
Discuss Piaget’s view of cognitive development and apply the stages to understanding childhood cognition
Describe Kohlberg’s theory of moral development
Compare and contrast the strengths and weaknesses of major developmental theories

Psychosexual Theory of Development

Sigmund Freud (1856–1939) believed that personality develops during early childhood. For Freud, childhood experiences shape our personalities and behavior as adults. Freud viewed development as discontinuous; he believed that each of us must pass through a serious of stages during childhood, and that if we lack proper nurturance and parenting during a stage, we may become stuck, or fixated, in that stage. Freud’s stages are called the stages of psychosexual development . According to Freud, children’s pleasure-seeking urges are focused on a different area of the body, called an erogenous zone, at each of the five stages of development: oral, anal, phallic, latency, and genital.

While most of Freud’s ideas have not found support in modern research, we cannot discount the contributions that Freud has made to the field of psychology. Psychologists today dispute Freud’s psychosexual stages as a legitimate explanation for how one’s personality develops, but what we can take away from Freud’s theory is that personality is shaped, in some part, by experiences we have in childhood. These stages are discussed in detail in the personality chapter in OpenStax .

Psychosocial Theory of Development

Erik Erikson (1902–1994) (Figure 4), another stage theorist, took Freud’s theory and modified it as psychosocial theory. Erikson’s psychosocial development emphasizes the social nature of our development rather than its sexual nature. While Freud believed that personality is shaped only in childhood, Erikson proposed that personality development takes place all through the lifespan. Erikson suggested that how we interact with others is what affects our sense of self, or what he called the ego identity.

A photograph depicts Erik Erikson in his later years.

Erikson proposed that we are motivated by a need to achieve competence in certain areas of our lives. According to psychosocial theory, we experience eight stages of development over our lifespan, from infancy through late adulthood. At each stage there is a conflict, or task, that we need to resolve. Successful completion of each developmental task results in a sense of competence and a healthy personality. Failure to master these tasks leads to feelings of inadequacy.

According to Erikson (1963), trust is the basis of our development during infancy (birth to 12 months). Therefore, the primary task of this stage is trust versus mistrust. Infants are dependent upon their caregivers, so caregivers who are responsive and sensitive to their infant’s needs help their baby to develop a sense of trust; their baby will see the world as a safe, predictable place. Unresponsive caregivers who do not meet their baby’s needs can engender feelings of anxiety, fear, and mistrust; their baby may see the world as unpredictable.

As toddlers (ages 1–3 years) begin to explore their world, they learn that they can control their actions and act on the environment to get results. They begin to show clear preferences for certain elements of the environment, such as food, toys, and clothing. A toddler’s main task is to resolve the issue of autonomy versus shame and doubt, by working to establish independence. This is the “me do it” stage. For example, we might observe a budding sense of autonomy in a 2-year-old child who wants to choose her clothes and dress herself. Although her outfits might not be appropriate for the situation, her input in such basic decisions has an effect on her sense of independence. If denied the opportunity to act on her environment, she may begin to doubt her abilities, which could lead to low self-esteem and feelings of shame.

Once children reach the preschool stage (ages 3–6 years), they are capable of initiating activities and asserting control over their world through social interactions and play. According to Erikson, preschool children must resolve the task of initiative versus guilt. By learning to plan and achieve goals while interacting with others, preschool children can master this task. Those who do will develop self-confidence and feel a sense of purpose. Those who are unsuccessful at this stage—with their initiative misfiring or stifled—may develop feelings of guilt. How might over-controlling parents stifle a child’s initiative?

During the elementary school stage (ages 6–12), children face the task of industry versus inferiority. Children begin to compare themselves to their peers to see how they measure up. They either develop a sense of pride and accomplishment in their schoolwork, sports, social activities, and family life, or they feel inferior and inadequate when they don’t measure up. What are some things parents and teachers can do to help children develop a sense of competence and a belief in themselves and their abilities?

In adolescence (ages 12–18), children face the task of identity versus role confusion. According to Erikson, an adolescent’s main task is developing a sense of self. Adolescents struggle with questions such as “Who am I?” and “What do I want to do with my life?” Along the way, most adolescents try on many different selves to see which ones fit. Adolescents who are successful at this stage have a strong sense of identity and are able to remain true to their beliefs and values in the face of problems and other people’s perspectives. What happens to apathetic adolescents, who do not make a conscious search for identity, or those who are pressured to conform to their parents’ ideas for the future? These teens will have a weak sense of self and experience role confusion. They are unsure of their identity and confused about the future.

People in early adulthood (i.e., 20s through early 40s) are concerned with intimacy versus isolation. After we have developed a sense of self in adolescence, we are ready to share our life with others. Erikson said that we must have a strong sense of self before developing intimate relationships with others. Adults who do not develop a positive self-concept in adolescence may experience feelings of loneliness and emotional isolation.

When people reach their 40s, they enter the time known as middle adulthood, which extends to the mid-60s. The social task of middle adulthood is generativity versus stagnation. Generativity involves finding your life’s work and contributing to the development of others, through activities such as volunteering, mentoring, and raising children. Those who do not master this task may experience stagnation, having little connection with others and little interest in productivity and self-improvement.

From the mid-60s to the end of life, we are in the period of development known as late adulthood. Erikson’s task at this stage is called integrity versus despair. He said that people in late adulthood reflect on their lives and feel either a sense of satisfaction or a sense of failure. People who feel proud of their accomplishments feel a sense of integrity, and they can look back on their lives with few regrets. However, people who are not successful at this stage may feel as if their life has been wasted. They focus on what “would have,” “should have,” and “could have” been. They face the end of their lives with feelings of bitterness, depression, and despair. Table 1 summarizes the stages of Erikson’s theory.

Cognitive Theory of Development

Jean Piaget (1896–1980) is another stage theorist who studied childhood development (Figure 5). Instead of approaching development from a psychoanalytical or psychosocial perspective, Piaget focused on children’s cognitive growth. He believed that thinking is a central aspect of development and that children are naturally inquisitive. However, he said that children do not think and reason like adults (Piaget, 1930, 1932). His theory of cognitive development holds that our cognitive abilities develop through specific stages, which exemplifies the discontinuity approach to development. As we progress to a new stage, there is a distinct shift in how we think and reason.

A photograph depicts Jean Piaget in his later years.

Piaget said that children develop schemata, sometimes called schemas, to help them understand the world. Schemata are concepts (mental models) that are used to help us categorize and interpret information. By the time children have reached adulthood, they have created schemata for almost everything. When children learn new information, they adjust their schemata through two processes: assimilation and accommodation. First, they assimilate new information or experiences in terms of their current schemata: assimilation is when they take in information that is comparable to what they already know. Accommodation describes when they change their schemata based on new information. This process continues as children interact with their environment.

For example, 2-year-old Blake learned the schema for dogs because his family has a Labrador retriever. When Blake sees other dogs in his picture books, he says, “Look mommy, dog!” Thus, he has assimilated them into his schema for dogs. One day, Blake sees a sheep for the first time and says, “Look mommy, dog!” Having a basic schema that a dog is an animal with four legs and fur, Blake thinks all furry, four-legged creatures are dogs. When Blake’s mom tells him that the animal he sees is a sheep, not a dog, Blake must accommodate his schema for dogs to include more information based on his new experiences. Blake’s schema for dog was too broad, since not all furry, four-legged creatures are dogs. He now modifies his schema for dogs and forms a new one for sheep.

Like Freud and Erikson, Piaget thought development unfolds in a series of stages approximately associated with age ranges. He proposed a theory of cognitive development that unfolds in four stages: sensorimotor, preoperational, concrete operational, and formal operational.

The first stage is the sensorimotor stage, which lasts from birth to about 2 years old. During this stage, children learn about the world through their senses and motor behavior. Young children put objects in their mouths to see if the items are edible, and once they can grasp objects, they may shake or bang them to see if they make sounds. Between 5 and 8 months old, the child develops object permanence , which is the understanding that even if something is out of sight, it still exists (Bogartz, Shinskey, & Schilling, 2000). According to Piaget, young infants do not remember an object after it has been removed from sight. Piaget studied infants’ reactions when a toy was first shown to an infant and then hidden under a blanket. Infants who had already developed object permanence would reach for the hidden toy, indicating that they knew it still existed, whereas infants who had not developed object permanence would appear confused.

Please take a few minutes to view this brief video demonstrating different children’s ability to understand object permanence:

You can view the transcript for “Piaget – Stage 1 – Sensorimotor Stage : Object Permanence” here (opens in new window) .

In Piaget’s view, around the same time children develop object permanence, they also begin to exhibit stranger anxiety, which is a fear of unfamiliar people. Babies may demonstrate this by crying and turning away from a stranger, by clinging to a caregiver, or by attempting to reach their arms toward familiar faces such as parents. Stranger anxiety results when a child is unable to assimilate the stranger into an existing schema; therefore, she can’t predict what her experience with that stranger will be like, which results in a fear response.

Piaget’s second stage is the preoperational stage , which is from approximately 2 to 7 years old. In this stage, children can use symbols to represent words, images, and ideas, which is why children in this stage engage in pretend play. A child’s arms might become airplane wings as he zooms around the room, or a child with a stick might become a brave knight with a sword. Children also begin to use language in the preoperational stage, but they cannot understand adult logic or mentally manipulate information (the term operational refers to logical manipulation of information, so children at this stage are considered to be pre -operational). Children’s logic is based on their own personal knowledge of the world so far, rather than on conventional knowledge. For example, dad gave a slice of pizza to 10-year-old Keiko and another slice to her 3-year-old brother, Kenny. Kenny’s pizza slice was cut into five pieces, so Kenny told his sister that he got more pizza than she did. Children in this stage cannot perform mental operations because they have not developed an understanding of conservation , which is the idea that even if you change the appearance of something, it is still equal in size as long as nothing has been removed or added.

This video shows a 4.5-year-old boy in the preoperational stage as he responds to Piaget’s conservation tasks.

You can view the transcript for “A typical child on Piaget’s conservation tasks” here (opens in new window) .

During this stage, we also expect children to display egocentrism , which means that the child is not able to take the perspective of others. A child at this stage thinks that everyone sees, thinks, and feels just as they do. Let’s look at Kenny and Keiko again. Keiko’s birthday is coming up, so their mom takes Kenny to the toy store to choose a present for his sister. He selects an Iron Man action figure for her, thinking that if he likes the toy, his sister will too. An egocentric child is not able to infer the perspective of other people and instead attributes his own perspective. At some point during this stage and typically between 3 and 5 years old, children come to understand that people have thoughts, feelings, and beliefs that are different from their own. This is known as theory-of-mind (TOM).

Piaget developed the Three-Mountain Task to determine the level of egocentrism displayed by children. Children view a 3-dimensional mountain scene from one viewpoint, and are asked what another person at a different viewpoint would see in the same scene. Watch the Three-Mountain Task in action in this short video from the University of Minnesota and the Science Museum of Minnesota.

You can view the transcript for “Piaget’s Mountains Task” here (opens in new window) .

Piaget’s third stage is the concrete operational stage , which occurs from about 7 to 11 years old. In this stage, children can think logically about real (concrete) events; they have a firm grasp on the use of numbers and start to employ memory strategies. They can perform mathematical operations and understand transformations, such as addition is the opposite of subtraction, and multiplication is the opposite of division. In this stage, children also master the concept of conservation: Even if something changes shape, its mass, volume, and number stay the same. For example, if you pour water from a tall, thin glass to a short, fat glass, you still have the same amount of water. Remember Keiko and Kenny and the pizza? How did Keiko know that Kenny was wrong when he said that he had more pizza?

Children in the concrete operational stage also understand the principle of reversibility , which means that objects can be changed and then returned back to their original form or condition. Take, for example, water that you poured into the short, fat glass: You can pour water from the fat glass back to the thin glass and still have the same amount (minus a couple of drops).

The fourth, and last, stage in Piaget’s theory is the formal operational stage , which is from about age 11 to adulthood. Whereas children in the concrete operational stage are able to think logically only about concrete events, children in the formal operational stage can also deal with abstract ideas and hypothetical situations. Children in this stage can use abstract thinking to problem solve, look at alternative solutions, and test these solutions. In adolescence, a renewed egocentrism occurs. For example, a 15-year-old with a very small pimple on her face might think it is huge and incredibly visible, under the mistaken impression that others must share her perceptions.

Beyond Formal Operational Thought

As with other major contributors of theories of development, several of Piaget’s ideas have come under criticism based on the results of further research. For example, several contemporary studies support a model of development that is more continuous than Piaget’s discrete stages (Courage & Howe, 2002; Siegler, 2005, 2006). Many others suggest that children reach cognitive milestones earlier than Piaget describes (Baillargeon, 2004; de Hevia & Spelke, 2010).

According to Piaget, the highest level of cognitive development is formal operational thought, which develops between 11 and 20 years old. However, many developmental psychologists disagree with Piaget, suggesting a fifth stage of cognitive development, known as the postformal stage (Basseches, 1984; Commons & Bresette, 2006; Sinnott, 1998). In postformal thinking, decisions are made based on situations and circumstances, and logic is integrated with emotion as adults develop principles that depend on contexts. One way that we can see the difference between an adult in postformal thought and an adolescent in formal operations is in terms of how they handle emotionally charged issues.

It seems that once we reach adulthood our problem solving abilities change: As we attempt to solve problems, we tend to think more deeply about many areas of our lives, such as relationships, work, and politics (Labouvie-Vief & Diehl, 1999). Because of this, postformal thinkers are able to draw on past experiences to help them solve new problems. Problem-solving strategies using postformal thought vary, depending on the situation. What does this mean? Adults can recognize, for example, that what seems to be an ideal solution to a problem at work involving a disagreement with a colleague may not be the best solution to a disagreement with a significant other.

Explain how you would use your understanding of one of the major developmental theories (psychosexual, psychosocial, or cognitive) to deal with each of the difficulties listed below:

Your infant daughter puts everything in her mouth, including the dog’s food.
Your eight-year-old son is failing math; all he cares about is baseball.
Your two-year-old daughter refuses to wear the clothes you pick for her every morning, which makes getting dressed a twenty-minute battle.
Your sixty-eight-year-old neighbor is chronically depressed and feels she has wasted her life.
Your 18-year-old daughter has decided not to go to college. Instead she’s moving to Colorado to become a ski instructor.
Your 11-year-old son is the class bully.

Theory of Moral Development

A major task beginning in childhood and continuing into adolescence is discerning right from wrong. Psychologist Lawrence Kohlberg (1927–1987) extended upon the foundation that Piaget built regarding cognitive development. Kohlberg believed that moral development, like cognitive development, follows a series of stages. To develop this theory, Kohlberg posed moral dilemmas to people of all ages, and then he analyzed their answers to find evidence of their particular stage of moral development. Before reading about the stages, take a minute to consider how you would answer one of Kohlberg’s best-known moral dilemmas, commonly known as the Heinz dilemma:

In Europe, a woman was near death from a special kind of cancer. There was one drug that the doctors thought might save her. It was a form of radium that a druggist in the same town had recently discovered. The drug was expensive to make, but the druggist was charging ten times what the drug cost him to make. He paid $200 for the radium and charged $2,000 for a small dose of the drug. The sick woman’s husband, Heinz, went to everyone he knew to borrow the money, but he could only get together about $1,000, which is half of what it cost. He told the druggist that his wife was dying and asked him to sell it cheaper or let him pay later. But the druggist said: “No, I discovered the drug and I’m going to make money from it.” So Heinz got desperate and broke into the man’s store to steal the drug for his wife. Should the husband have done that? (Kohlberg, 1969, p. 379)

How would you answer this dilemma? Kohlberg was not interested in whether you answer yes or no to the dilemma: Instead, he was interested in the reasoning behind your answer.

After presenting people with this and various other moral dilemmas, Kohlberg reviewed people’s responses and placed them in different [pb_glossary id="2815"]stages of moral reasoning (Figure 6). According to Kohlberg, an individual progresses from the capacity for pre-conventional morality (before age 9) to the capacity for conventional morality (early adolescence), and toward attaining post-conventional morality (once formal operational thought is attained), which only a few fully achieve. Kohlberg placed in the highest stage responses that reflected the reasoning that Heinz should steal the drug because his wife’s life is more important than the pharmacist making money. The value of a human life overrides the pharmacist’s greed.

Nine boxes are arranged in rows and columns of three. The top left box contains “Level 1, Pre-conventional Morality.” A line connects this box with another box to the right containing “Stage 1, Obedience and punishment: behavior driven by avoiding punishment.” To the right is another box connected by a line containing “Stage 2, Individual interest: behavior driven by self-interest and rewards.” The middle left box contains “Level 2, Conventional Morality.” A line connects this box with another box to the right containing “Stage 3, Interpersonal: behavior driven by social approval.” To the right is another box connected by a line containing “Stage 4, Authority: behavior driven by obeying authority and conforming to social order.” The lower left box contains “Level 3, Post-conventional Morality.” A line connects this box with another box to the right containing “Stage 5, Social contract: behavior driven by balance of social order and individual rights.” To the right is another box connected by a line containing “Stage 6, Universal ethics: behavior driven by internal moral principles.”

It is important to realize that even those people who have the most sophisticated, post-conventional reasons for some choices may make other choices for the simplest of pre-conventional reasons. Many psychologists agree with Kohlberg's theory of moral development but point out that moral reasoning is very different from moral behavior. Sometimes what we say we would do in a situation is not what we actually do in that situation. In other words, we might “talk the talk,” but not “walk the walk.”

How does this theory apply to males and females? Kohlberg (1969) felt that more males than females move past stage four in their moral development. He went on to note that women seem to be deficient in their moral reasoning abilities. These ideas were not well received by Carol Gilligan, a research assistant of Kohlberg, who consequently developed her own ideas of moral development. In her groundbreaking book, In a Different Voice: Psychological Theory and Women’s Development , Gilligan (1982) criticized her former mentor’s theory because it was based only on upper class white men and boys. She argued that women are not deficient in their moral reasoning—she proposed that males and females reason differently. Girls and women focus more on staying connected and the importance of interpersonal relationships. Therefore, in the Heinz dilemma, many girls and women respond that Heinz should not steal the medicine. Their reasoning is that if he steals the medicine, is arrested, and is put in jail, then he and his wife will be separated, and she could die while he is still in prison.

Development in Childhood

Think about the miraculous development that occurs during childhood in order for a tiny zygote to grow into a walking, talking, thinking child. Newborn infants only weigh about 7.5 pounds but their physical, cognitive, and psychosocial skills grow and change as they move through developmental stages. In this section, you'll learn about many of these changes.

Describe the stages of prenatal development and the significance of prenatal care
Define and differentiate between various infant reflexes
Explain the physical, cognitive, and emotional development that occurs from infancy through childhood

Prenatal Development

As discussed at the beginning of this chapter, developmental psychologists often divide our development into three areas: physical development, cognitive development, and psychosocial development. Mirroring Erikson’s stages, lifespan development is divided into different stages that are based on age. We will discuss prenatal, infant, child, adolescent, and adult development.

Germinal Stage (Weeks 1–2)

In the discussion of biopsychology earlier in the book, you learned about genetics and DNA. A mother and father’s DNA is passed on to the child at the moment of conception. Conception occurs when sperm fertilizes an egg and forms a zygote (Figure 7). A zygote begins as a one-cell structure that is created when a sperm and egg merge. The genetic makeup and sex of the baby are set at this point. During the first week after conception, the zygote divides and multiplies, going from a one-cell structure to two cells, then four cells, then eight cells, and so on. This process of cell division is called mitosis. Mitosis is a fragile process, and fewer than one-half of all zygotes survive beyond the first two weeks (Hall, 2004). After 5 days of mitosis there are 100 cells, and after 9 months there are billions of cells. As the cells divide, they become more specialized, forming different organs and body parts. In the germinal stage, the mass of cells has yet to attach itself to the lining of the mother’s uterus. Once it does, the next stage begins.

A microscopic picture shows a single sperm fusing with the ovum.

Embryonic Stage (Weeks 3–8)

After the zygote divides for about 7–10 days and has 150 cells, it travels down the fallopian tubes and implants itself in the lining of the uterus. Upon implantation, this multi-cellular organism is called an embryo . Now blood vessels grow, forming the placenta. The placenta is a structure connected to the uterus that provides nourishment and oxygen from the mother to the developing embryo via the umbilical cord. Basic structures of the embryo start to develop into areas that will become the head, chest, and abdomen. During the embryonic stage, the heart begins to beat and organs form and begin to function. The neural tube forms along the back of the embryo, developing into the spinal cord and brain.

Fetal Stage (Weeks 9–40)

When the organism is about nine weeks old, the embryo is called a fetus. At this stage, the fetus is about the size of a kidney bean and begins to take on the recognizable form of a human being as the “tail” begins to disappear.

From 9–12 weeks, the sex organs begin to differentiate. At about 16 weeks, the fetus is approximately 4.5 inches long. Fingers and toes are fully developed, and fingerprints are visible. By the time the fetus reaches the sixth month of development (24 weeks), it weighs up to 1.4 pounds. Hearing has developed, so the fetus can respond to sounds. The internal organs, such as the lungs, heart, stomach, and intestines, have formed enough that a fetus born prematurely at this point has a chance to survive outside of the mother’s womb. Throughout the fetal stage the brain continues to grow and develop, nearly doubling in size from weeks 16 to 28. Around 36 weeks, the fetus is almost ready for birth. It weighs about 6 pounds and is about 18.5 inches long, and by week 37 all of the fetus’s organ systems are developed enough that it could survive outside the mother’s uterus without many of the risks associated with premature birth. The fetus continues to gain weight and grow in length until approximately 40 weeks. By then, the fetus has very little room to move around and birth becomes imminent. The progression through the stages is shown in Figure 8.

The growth of a fetus is shown using nine pictures in different stages of development. For each stage, there is a picture of a fetus which gets progressively larger and more mature. The first stage is labeled “9 weeks; fetal stage begins.” The second stage is labeled “12 weeks; sex organs differentiate.” The third stage is labeled “16 weeks; fingers and toes develop.” The fourth stage is labeled “20 weeks; hearing begins.” The fifth stage is labeled “24 weeks; lungs begin to develop.” The sixth stage is labeled “28 weeks; brain grows rapidly.” The seventh stage is labeled “32 weeks; bones fully develop.” The eighth stage is labeled “36 weeks; muscles fully develop.” The ninth stage is labeled “40 weeks; full-term development.”

Prenatal Influences

During each prenatal stage, genetic and environmental factors can affect development. The developing fetus is completely dependent on the mother for life. It is important that the mother takes good care of herself and receives prenatal care , which is medical care during pregnancy that monitors the health of both the mother and the fetus. According to the National Institutes of Health ([NIH], 2013), routine prenatal care is important because it can reduce the risk of complications to the mother and fetus during pregnancy. In fact, women who are trying to become pregnant or who may become pregnant should discuss pregnancy planning with their doctor. They may be advised, for example, to take a vitamin containing folic acid, which helps prevent certain birth defects, or to monitor aspects of their diet or exercise routines.

A pregnant woman is lying on a table being examined by a doctor. The doctor's hands are on her belly.

Recall that when the zygote attaches to the wall of the mother’s uterus, the placenta is formed. The placenta provides nourishment and oxygen to the fetus. Most everything the mother ingests, including food, liquid, and even medication, travels through the placenta to the fetus, hence the common phrase “eating for two.” Anything the mother is exposed to in the environment affects the fetus; if the mother is exposed to something harmful, the child can show life-long effects.

A teratogen is any environmental agent—biological, chemical, or physical—that causes damage to the developing embryo or fetus. There are different types of teratogens. Alcohol and most drugs cross the placenta and affect the fetus. Alcohol is not safe to drink in any amount during pregnancy. Alcohol use during pregnancy has been found to be the leading preventable cause of mental retardation in children in the United States (Maier & West, 2001). Excessive maternal drinking while pregnant can cause fetal alcohol spectrum disorders with life-long consequences for the child ranging in severity from minor to major (Table 3). Fetal alcohol spectrum disorders (FASD) are a collection of birth defects associated with heavy consumption of alcohol during pregnancy. Physically, children with FASD may have a small head size and abnormal facial features. Cognitively, these children may have poor judgment, poor impulse control, higher rates of ADHD, learning issues, and lower IQ scores. These developmental problems and delays persist into adulthood (Streissguth et al., 2004). Based on studies conducted on animals, it also has been suggested that a mother’s alcohol consumption during pregnancy may predispose her child to like alcohol (Youngentob et al., 2007).

Smoking is also considered a teratogen because nicotine travels through the placenta to the fetus. When the mother smokes, the developing baby experiences a reduction in blood oxygen levels. According to the Centers for Disease Control and Prevention (2013), smoking while pregnant can result in premature birth, low-birth-weight infants, stillbirth, and sudden infant death syndrome (SIDS).

Heroin, cocaine, methamphetamine, almost all prescription medicines, and most over-the counter medications are also considered teratogens. Babies born with a heroin addiction need heroin just like an adult addict. The child will need to be gradually weaned from the heroin under medical supervision; otherwise, the child could have seizures and die. Other teratogens include radiation, viruses such as HIV and herpes, and rubella (German measles). Women in the United States are much less likely to be afflicted with rubella because most women received childhood immunizations or vaccinations that protect the body from disease.

Each organ of the fetus develops during a specific period in the pregnancy, called the critical or sensitive period (Figure 9). For example, research with primate models of FASD has demonstrated that the time during which a developing fetus is exposed to alcohol can dramatically affect the appearance of facial characteristics associated with fetal alcohol syndrome. Specifically, this research suggests that alcohol exposure that is limited to day 19 or 20 of gestation can lead to significant facial abnormalities in the offspring (Ashley, Magnuson, Omnell, & Clarren, 1999). Given regions of the brain also show sensitive periods during which they are most susceptible to the teratogenic effects of alcohol (Tran & Kelly, 2003).

Dig Deeper: Should Women Who Use Drugs During Pregnancy Be Arrested and Jailed?

As you now know, women who use drugs or alcohol during pregnancy can cause serious lifelong harm to their child. Some people have advocated mandatory screenings for women who are pregnant and have a history of drug abuse, and if the women continue using, to arrest, prosecute, and incarcerate them (Figdor & Kaeser, 1998). This policy was tried in Charleston, South Carolina, as recently as 20 years ago. The policy was called the Interagency Policy on Management of Substance Abuse During Pregnancy, and had disastrous results.

The Interagency Policy applied to patients attending the obstetrics clinic at MUSC, which primarily serves patients who are indigent or on Medicaid. It did not apply to private obstetrical patients. The policy required patient education about the harmful effects of substance abuse during pregnancy. . . . [A] statement also warned patients that protection of unborn and newborn children from the harms of illegal drug abuse could involve the Charleston police, the Solicitor of the Ninth Judicial Court, and the Protective Services Division of the Department of Social Services (DSS). (Jos, Marshall, & Perlmutter, 1995, pp. 120–121)

This policy seemed to deter women from seeking prenatal care, deterred them from seeking other social services, and was applied solely to low-income women, resulting in lawsuits. The program was canceled after 5 years, during which 42 women were arrested. A federal agency later determined that the program involved human experimentation without the approval and oversight of an institutional review board (IRB). What were the flaws in the program and how would you correct them? What are the ethical implications of charging pregnant women with child abuse?

Infancy through Childhood

The average newborn weighs approximately 7.5 pounds. Although small, a newborn is not completely helpless because his reflexes and sensory capacities help him interact with the environment from the moment of birth. All healthy babies are born with newborn reflexes : inborn automatic responses to particular forms of stimulation. Reflexes help the newborn survive until it is capable of more complex behaviors—these reflexes are crucial to survival. They are present in babies whose brains are developing normally and usually disappear around 4–5 months old. Let’s take a look at some of these newborn reflexes. The rooting reflex is the newborn’s response to anything that touches her cheek: When you stroke a baby’s cheek, she naturally turns her head in that direction and begins to suck. The sucking reflex is the automatic, unlearned, sucking motions that infants do with their mouths. Several other interesting newborn reflexes can be observed. For instance, if you put your finger into a newborn’s hand, you will witness the grasping reflex , in which a baby automatically grasps anything that touches his palms. The Moro reflex is the newborn’s response when she feels like she is falling. The baby spreads her arms, pulls them back in, and then (usually) cries. How do you think these reflexes promote survival in the first months of life?

Take a few minutes to view this brief video clip illustrating several newborn reflexes .

If you are interested in learning more about human development in babies, watch this TED talk by Alison Gopnik . Recent discoveries reveal that babies are probably smarter than we think.

What can young infants see, hear, and smell? Newborn infants’ sensory abilities are significant, but their senses are not yet fully developed. Many of a newborn’s innate preferences facilitate interaction with caregivers and other humans. Although vision is their least developed sense, newborns already show a preference for faces. Babies who are just a few days old also prefer human voices, they will listen to voices longer than sounds that do not involve speech (Vouloumanos & Werker, 2004), and they seem to prefer their mother’s voice over a stranger’s voice (Mills & Melhuish, 1974). In an interesting experiment, 3-week-old babies were given pacifiers that played a recording of the infant’s mother’s voice and of a stranger’s voice. When the infants heard their mother’s voice, they sucked more strongly at the pacifier (Mills & Melhuish, 1974). Newborns also have a strong sense of smell. For instance, newborn babies can distinguish the smell of their own mother from that of others. In a study by MacFarlane (1978), 1-week-old babies who were being breastfed were placed between two gauze pads. One gauze pad was from the bra of a nursing mother who was a stranger, and the other gauze pad was from the bra of the infant’s own mother. More than two-thirds of the week-old babies turned toward the gauze pad with their mother’s scent.

Physical Development

In infancy, toddlerhood, and early childhood, the body’s physical development is rapid (Figure 10). On average, newborns weigh between 5 and 10 pounds, and a newborn’s weight typically doubles in six months and triples in one year. By 2 years old the weight will have quadrupled, so we can expect that a 2 year old should weigh between 20 and 40 pounds. The average length of a newborn is 19.5 inches, increasing to 29.5 inches by 12 months and 34.4 inches by 2 years old (WHO Multicentre Growth Reference Study Group, 2006).

A collage of four photographs depicting babies is shown. From left to right they get progressively older. The far left photograph is a bundled up sleeping newborn. To the right is a picture of a toddler next to a toy giraffe. To the right is a baby blowing out a single candle. To the far right is a child on a swing set.

During infancy and childhood, growth does not occur at a steady rate (Carel, Lahlou, Roger, & Chaussain, 2004). Growth slows between 4 and 6 years old: During this time children gain 5–7 pounds and grow about 2–3 inches per year. Once girls reach 8–9 years old, their growth rate outpaces that of boys due to a pubertal growth spurt. This growth spurt continues until around 12 years old, coinciding with the start of the menstrual cycle. By 10 years old, the average girl weighs 88 pounds, and the average boy weighs 85 pounds.

We are born with all of the brain cells that we will ever have—about 100–200 billion neurons (nerve cells) whose function is to store and transmit information (Huttenlocher & Dabholkar, 1997). However, the nervous system continues to grow and develop. Each neural pathway forms thousands of new connections during infancy and toddlerhood. This period of rapid neural growth is called blooming. Neural pathways continue to develop through puberty. The blooming period of neural growth is then followed by a period of pruning, where neural connections are reduced. It is thought that pruning causes the brain to function more efficiently, allowing for mastery of more complex skills (Hutchinson, 2011). Blooming occurs during the first few years of life, and pruning continues through childhood and into adolescence in various areas of the brain.

The size of our brains increases rapidly. For example, the brain of a 2-year-old is 55% of its adult size, and by 6 years old the brain is about 90% of its adult size (Tanner, 1978). During early childhood (ages 3–6), the frontal lobes grow rapidly. Recalling our discussion of the 4 lobes of the brain earlier in this book, the frontal lobes are associated with planning, reasoning, memory, and impulse control. Therefore, by the time children reach school age, they are developmentally capable of controlling their attention and behavior. Through the elementary school years, the frontal, temporal, occipital, and parietal lobes all grow in size. The brain growth spurts experienced in childhood tend to follow Piaget’s sequence of cognitive development, so that significant changes in neural functioning account for cognitive advances (Kolb & Whishaw, 2009; Overman, Bachevalier, Turner, & Peuster, 1992).

Motor development occurs in an orderly sequence as infants move from reflexive reactions (e.g., sucking and rooting) to more advanced motor functioning. For instance, babies first learn to hold their heads up, then to sit with assistance, and then to sit unassisted, followed later by crawling and then walking.

Motor skills refer to our ability to move our bodies and manipulate objects. Fine motor skills focus on the muscles in our fingers, toes, and eyes, and enable coordination of small actions (e.g., grasping a toy, writing with a pencil, and using a spoon). Gross motor skills focus on large muscle groups that control our arms and legs and involve larger movements (e.g., balancing, running, and jumping).

As motor skills develop, there are certain developmental milestones that young children should achieve (Table 4). For each milestone there is an average age, as well as a range of ages in which the milestone should be reached. An example of a developmental milestone is sitting. On average, most babies sit alone at 7 months old. Sitting involves both coordination and muscle strength, and 90% of babies achieve this milestone between 5 and 9 months old. In another example, babies on average are able to hold up their head at 6 weeks old, and 90% of babies achieve this between 3 weeks and 4 months old. If a baby is not holding up his head by 4 months old, he is showing a delay. If the child is displaying delays on several milestones, that is reason for concern, and the parent or caregiver should discuss this with the child’s pediatrician. Some developmental delays can be identified and addressed through early intervention.

Cognitive Development

In addition to rapid physical growth, young children also exhibit significant development of their cognitive abilities. Piaget thought that children’s ability to understand objects—such as learning that a rattle makes a noise when shaken—was a cognitive skill that develops slowly as a child matures and interacts with the environment. Today, developmental psychologists think Piaget was incorrect. Researchers have found that even very young children understand objects and how they work long before they have experience with those objects (Baillargeon, 1987; Baillargeon, Li, Gertner, & Wu, 2011). For example, children as young as 3 months old demonstrated knowledge of the properties of objects that they had only viewed and did not have prior experience with them. In one study, 3-month-old infants were shown a truck rolling down a track and behind a screen. The box, which appeared solid but was actually hollow, was placed next to the track. The truck rolled past the box as would be expected. Then the box was placed on the track to block the path of the truck. When the truck was rolled down the track this time, it continued unimpeded. The infants spent significantly more time looking at this impossible event (Figure 11). Baillargeon (1987) concluded that they knew solid objects cannot pass through each other. Baillargeon’s findings suggest that very young children have an understanding of objects and how they work, which Piaget (1954) would have said is beyond their cognitive abilities due to their limited experiences in the world.

Image A shows a toy truck coasting along a track unobstructed. Image B shows a toy truck coasting along a track with a box in the background. Image C shows a truck coasting along a track and going through what appears to be an obstruction.

Just as there are physical milestones that we expect children to reach, there are also cognitive milestones. It is helpful to be aware of these milestones as children gain new abilities to think, problem solve, and communicate. For example, infants shake their head “no” around 6–9 months, and they respond to verbal requests to do things like “wave bye-bye” or “blow a kiss” around 9–12 months. Remember Piaget’s ideas about object permanence? We can expect children to grasp the concept that objects continue to exist even when they are not in sight by around 8 months old. Because toddlers (i.e., 12–24 months old) have mastered object permanence, they enjoy games like hide and seek, and they realize that when someone leaves the room they will come back (Loop, 2013). Toddlers also point to pictures in books and look in appropriate places when you ask them to find objects.

Preschool-age children (i.e., 3–5 years old) also make steady progress in cognitive development. Not only can they count, name colors, and tell you their name and age, but they can also make some decisions on their own, such as choosing an outfit to wear. Preschool-age children understand basic time concepts and sequencing (e.g., before and after), and they can predict what will happen next in a story. They also begin to enjoy the use of humor in stories. Because they can think symbolically, they enjoy pretend play and inventing elaborate characters and scenarios. One of the most common examples of their cognitive growth is their blossoming curiosity. Preschool-age children love to ask “Why?”

An important cognitive change occurs in children this age. Recall that Piaget described 2–3 year olds as egocentric, meaning that they do not have an awareness of others’ points of view. Between 3 and 5 years old, children come to understand that people have thoughts, feelings, and beliefs that are different from their own. This is known as theory-of-mind (TOM). Children can use this skill to tease others, persuade their parents to purchase a candy bar, or understand why a sibling might be angry. When children develop TOM, they can recognize that others have false beliefs (Dennett, 1987; Callaghan et al., 2005).

False-belief tasks are useful in determining a child’s acquisition of theory-of-mind (TOM). Take a look at this video clip showing a false-belief task involving a box of crayons.

You can view the transcript for "The "False Belief" Test: Theory of Mind" here (opens in new window) .

Cognitive skills continue to expand in middle and late childhood (6–11 years old). Thought processes become more logical and organized when dealing with concrete information (Figure 12). Children at this age understand concepts such as the past, present, and future, giving them the ability to plan and work toward goals. Additionally, they can process complex ideas such as addition and subtraction and cause-and-effect relationships. However, children’s attention spans tend to be very limited until they are around 11 years old. After that point, it begins to improve through adulthood.

A photograph of children playing baseball is shown. Five children are in the picture, two on one team, and three on the other.

One well-researched aspect of cognitive development is language acquisition. As mentioned earlier, the order in which children learn language structures is consistent across children and cultures (Hatch, 1983). You’ve also learned that some psychological researchers have proposed that children possess a biological predisposition for language acquisition.

Starting before birth, babies begin to develop language and communication skills. At birth, babies apparently recognize their mother’s voice and can discriminate between the language(s) spoken by their mothers and foreign languages, and they show preferences for faces that are moving in synchrony with audible language (Blossom & Morgan, 2006; Pickens, 1994; Spelke & Cortelyou, 1981).

Children communicate information through gesturing long before they speak, and there is some evidence that gesture usage predicts subsequent language development (Iverson & Goldin-Meadow, 2005). In terms of producing spoken language, babies begin to coo almost immediately. Cooing is a one-syllable combination of a consonant and a vowel sound (e.g., coo or ba). Interestingly, babies replicate sounds from their own languages. A baby whose parents speak French will coo in a different tone than a baby whose parents speak Spanish or Urdu. After cooing, the baby starts to babble. Babbling begins with repeating a syllable, such as ma-ma, da-da, or ba-ba. When a baby is about 12 months old, we expect her to say her first word for meaning, and to start combining words for meaning at about 18 months.

At about 2 years old, a toddler uses between 50 and 200 words; by 3 years old they have a vocabulary of up to 1,000 words and can speak in sentences. During the early childhood years, children's vocabulary increases at a rapid pace. This is sometimes referred to as the “vocabulary spurt” and has been claimed to involve an expansion in vocabulary at a rate of 10–20 new words per week. Recent research may indicate that while some children experience these spurts, it is far from universal (as discussed in Ganger & Brent, 2004). It has been estimated that, 5 year olds understand about 6,000 words, speak 2,000 words, and can define words and question their meanings. They can rhyme and name the days of the week. Seven year olds speak fluently and use slang and clichés (Stork & Widdowson, 1974).

What accounts for such dramatic language learning by children? Behaviorist B. F. Skinner thought that we learn language in response to reinforcement or feedback, such as through parental approval or through being understood. For example, when a two-year-old child asks for juice, he might say, “me juice,” to which his mother might respond by giving him a cup of apple juice. Noam Chomsky (1957) criticized Skinner’s theory and proposed that we are all born with an innate capacity to learn language. Chomsky called this mechanism a language acquisition device (LAD). Who is correct? Both Chomsky and Skinner are right. Remember that we are a product of both nature and nurture. Researchers now believe that language acquisition is partially inborn and partially learned through our interactions with our linguistic environment (Gleitman & Newport, 1995; Stork & Widdowson, 1974).

Everyday Connection: The Importance of Play and Recess

According to the American Academy of Pediatrics (2007), unstructured play is an integral part of a child’s development. It builds creativity, problem solving skills, and social relationships. Play also allows children to develop a theory-of-mind as they imaginatively take on the perspective of others.

Outdoor play allows children the opportunity to directly experience and sense the world around them. While doing so, they may collect objects that they come across and develop lifelong interests and hobbies. They also benefit from increased exercise, and engaging in outdoor play can actually increase how much they enjoy physical activity. This helps support the development of a healthy heart and brain. Unfortunately, research suggests that today’s children are engaging in less and less outdoor play (Clements, 2004). Perhaps, it is no surprise to learn that lowered levels of physical activity in conjunction with easy access to calorie-dense foods with little nutritional value are contributing to alarming levels of childhood obesity (Karnik & Kanekar, 2012).

Despite the adverse consequences associated with reduced play, some children are over scheduled and have little free time to engage in unstructured play. In addition, some schools have taken away recess time for children in a push for students to do better on standardized tests, and many schools commonly use loss of recess as a form of punishment. Do you agree with these practices? Why or why not?

Psychosocial development occurs as children form relationships, interact with others, and understand and manage their feelings. In social and emotional development, forming healthy attachments is very important and is the major social milestone of infancy. Attachment is a long-standing connection or bond with others. Developmental psychologists are interested in how infants reach this milestone. They ask such questions as: How do parent and infant attachment bonds form? How does neglect affect these bonds? What accounts for children’s attachment differences?

Building on the work of Harlow and others, John Bowlby developed the concept of attachment theory. He defined attachment as the affectional bond or tie that an infant forms with the mother (Bowlby, 1969). An infant must form this bond with a primary caregiver in order to have normal social and emotional development. In addition, Bowlby proposed that this attachment bond is very powerful and continues throughout life. He used the concept of secure base to define a healthy attachment between parent and child (1988). A secure base is a parental presence that gives the child a sense of safety as he explores his surroundings. Bowlby said that two things are needed for a healthy attachment: The caregiver must be responsive to the child’s physical, social, and emotional needs; and the caregiver and child must engage in mutually enjoyable interactions (Bowlby, 1969) (Figure 13).

While Bowlby thought attachment was an all-or-nothing process, Mary Ainsworth’s (1970) research showed otherwise. Ainsworth wanted to know if children differ in the ways they bond, and if so, why. To find the answers, she used the Strange Situation procedure to study attachment between mothers and their infants (1970). In the Strange Situation, the mother (or primary caregiver) and the infant (age 12-18 months) are placed in a room together. There are toys in the room, and the caregiver and child spend some time alone in the room. After the child has had time to explore her surroundings, a stranger enters the room. The mother then leaves her baby with the stranger. After a few minutes, she returns to comfort her child.

Based on how the infants/toddlers responded to the separation and reunion, Ainsworth identified three types of parent-child attachments: secure, avoidant, and resistant (Ainsworth & Bell, 1970). A fourth style, known as disorganized attachment, was later described (Main & Solomon, 1990). The most common type of attachment—also considered the healthiest—is called secure attachment (Figure 14). In this type of attachment, the toddler prefers his parent over a stranger. The attachment figure is used as a secure base to explore the environment and is sought out in times of stress. Securely attached children were distressed when their caregivers left the room in the Strange Situation experiment, but when their caregivers returned, the securely attached children were happy to see them. Securely attached children have caregivers who are sensitive and responsive to their needs.

A photograph shows a person squatting down next to a small child who is standing up.

With avoidant attachment (sometimes called insecure or anxious-avoidant), the child is unresponsive to the parent, does not use the parent as a secure base, and does not care if the parent leaves. The toddler reacts to the parent the same way she reacts to a stranger. When the parent does return, the child is slow to show a positive reaction. Ainsworth theorized that these children were most likely to have a caregiver who was insensitive and inattentive to their needs (Ainsworth, Blehar, Waters, & Wall, 1978).

In cases of resistant attachment (also called ambivalent or anxious-ambivalent/resistant), children tend to show clingy behavior, but then they reject the attachment figure’s attempts to interact with them (Ainsworth & Bell, 1970). These children do not explore the toys in the room, as they are too fearful. During separation in the Strange Situation, they became extremely disturbed and angry with the parent. When the parent returns, the children are difficult to comfort. Resistant attachment is the result of the caregivers’ inconsistent level of response to their child.

Finally, children with disorganized attachment behaved oddly in the Strange Situation. They freeze, run around the room in an erratic manner, or try to run away when the caregiver returns (Main & Solomon, 1990). This type of attachment is seen most often in kids who have been abused. Research has shown that abuse disrupts a child’s ability to regulate their emotions.

While Ainsworth’s research has found support in subsequent studies, it has also met criticism. Some researchers have pointed out that a child’s temperament may have a strong influence on attachment (Gervai, 2009; Harris, 2009), and others have noted that attachment varies from culture to culture, a factor not accounted for in Ainsworth’s research (Rothbaum, Weisz, Pott, Miyake, & Morelli, 2000; van Ijzendoorn & Sagi-Schwartz, 2008).

Watch this video to view a clip of the Strange Situation. Try to identify which type of attachment baby Lisa exhibits.

You can view the transcript for "The Strange Situation - Mary Ainsworth" here (opens in new window) .

Self-Concept

Just as attachment is the main psychosocial milestone of infancy, the primary psychosocial milestone of childhood is the development of a positive sense of self. How does self-awareness develop? Infants don’t have a self-concept, which is an understanding of who they are. If you place a baby in front of a mirror, she will reach out to touch her image, thinking it is another baby. However, by about 18 months a toddler will recognize that the person in the mirror is herself. How do we know this? In a well-known experiment, a researcher placed a red dot of paint on children’s noses before putting them in front of a mirror (Amsterdam, 1972). Commonly known as the mirror test, this behavior is demonstrated by humans and a few other species and is considered evidence of self-recognition (Archer, 1992). At 18 months old they would touch their own noses when they saw the paint, surprised to see a spot on their faces. By 24–36 months old children can name and/or point to themselves in pictures, clearly indicating self-recognition.

Children from 2–4 years old display a great increase in social behavior once they have established a self-concept. They enjoy playing with other children, but they have difficulty sharing their possessions. Also, through play children explore and come to understand their gender roles and can label themselves as a girl or boy (Chick, Heilman-Houser, & Hunter, 2002). By 4 years old, children can cooperate with other children, share when asked, and separate from parents with little anxiety. Children at this age also exhibit autonomy, initiate tasks, and carry out plans. Success in these areas contributes to a positive sense of self. Once children reach 6 years old, they can identify themselves in terms of group memberships: “I’m a first grader!” School-age children compare themselves to their peers and discover that they are competent in some areas and less so in others (recall Erikson’s task of industry versus inferiority). At this age, children recognize their own personality traits as well as some other traits they would like to have. For example, 10-year-old Layla says, “I’m kind of shy. I wish I could be more talkative like my friend Alexa.”

Development of a positive self-concept is important to healthy development. Children with a positive self-concept tend to be more confident, do better in school, act more independently, and are more willing to try new activities (Maccoby, 1980; Ferrer & Fugate, 2003). Formation of a positive self-concept begins in Erikson’s toddlerhood stage, when children establish autonomy and become confident in their abilities. Development of self-concept continues in elementary school, when children compare themselves to others. When the comparison is favorable, children feel a sense of competence and are motivated to work harder and accomplish more. Self-concept is re-evaluated in Erikson’s adolescence stage, as teens form an identity. They internalize the messages they have received regarding their strengths and weaknesses, keeping some messages and rejecting others. Adolescents who have achieved identity formation are capable of contributing positively to society (Erikson, 1968).

What can parents do to nurture a healthy self-concept? Diana Baumrind (1971, 1991) thinks parenting style may be a factor. The way we parent is an important factor in a child’s socioemotional growth. Baumrind developed and refined a theory describing four parenting styles: authoritative, authoritarian, permissive, and uninvolved. With the authoritative style , the parent gives reasonable demands and consistent limits, expresses warmth and affection, and listens to the child’s point of view. Parents set rules and explain the reasons behind them. They are also flexible and willing to make exceptions to the rules in certain cases—for example, temporarily relaxing bedtime rules to allow for a nighttime swim during a family vacation. Of the four parenting styles, the authoritative style is the one that is most encouraged in modern American society. American children raised by authoritative parents tend to have high self-esteem and social skills. However, effective parenting styles vary as a function of culture and, as Small (1999) points out, the authoritative style is not necessarily preferred or appropriate in all cultures.

In authoritarian style , the parent places high value on conformity and obedience. The parents are often strict, tightly monitor their children, and express little warmth. In contrast to the authoritative style, authoritarian parents probably would not relax bedtime rules during a vacation because they consider the rules to be set, and they expect obedience. This style can create anxious, withdrawn, and unhappy kids. However, it is important to point out that authoritarian parenting is as beneficial as the authoritative style in some ethnic groups (Russell, Crockett, & Chao, 2010). For instance, first-generation Chinese American children raised by authoritarian parents did just as well in school as their peers who were raised by authoritative parents (Russell et al., 2010).

For parents who employ the permissive style of parenting, the kids run the show and anything goes. Permissive parents make few demands and rarely use punishment. They tend to be very nurturing and loving, and may play the role of friend rather than parent. In terms of our example of vacation bedtimes, permissive parents might not have bedtime rules at all—instead they allow the child to choose his bedtime whether on vacation or not. Not surprisingly, children raised by permissive parents tend to lack self-discipline, and the permissive parenting style is negatively associated with grades (Dornbusch, Ritter, Leiderman, Roberts, & Fraleigh, 1987). The permissive style may also contribute to other risky behaviors such as alcohol abuse (Bahr & Hoffman, 2010), risky sexual behavior especially among female children (Donenberg, Wilson, Emerson, & Bryant, 2002), and increased display of disruptive behaviors by male children (Parent et al., 2011). However, there are some positive outcomes associated with children raised by permissive parents. They tend to have higher self-esteem, better social skills, and report lower levels of depression (Darling, 1999).

With the uninvolved style of parenting, the parents are indifferent, uninvolved, and sometimes referred to as neglectful. They don’t respond to the child’s needs and make relatively few demands. This could be because of severe depression or substance abuse, or other factors such as the parents’ extreme focus on work. These parents may provide for the child’s basic needs, but little else. The children raised in this parenting style are usually emotionally withdrawn, fearful, anxious, perform poorly in school, and are at an increased risk of substance abuse (Darling, 1999).

As you can see, parenting styles influence childhood adjustment, but could a child’s temperament likewise influence parenting? Temperament refers to innate traits that influence how one thinks, behaves, and reacts with the environment. Children with easy temperaments demonstrate positive emotions, adapt well to change, and are capable of regulating their emotions. Conversely, children with difficult temperaments demonstrate negative emotions and have difficulty adapting to change and regulating their emotions. Difficult children are much more likely to challenge parents, teachers, and other caregivers (Thomas, 1984). Therefore, it’s possible that easy children (i.e., social, adaptable, and easy to soothe) tend to elicit warm and responsive parenting, while demanding, irritable, withdrawn children evoke irritation in their parents or cause their parents to withdraw (Sanson & Rothbart, 1995).

Development in Adolescence and Adulthood

Changes in development during childhood are rapid and more obvious than the changes that come later on in life, but before you reach adulthood, there is one more large transition: adolescence. Adolescence brings the physical development of puberty, as well as cognitive, social, and emotional changes. Following adolescence, transitions are less obvious, but still significant throughout emerging adulthood and adulthood. Finally, growing older means confronting many psychological, emotional, and social issues that come with entering the last phase of life.

Watch this video from a few of the world's oldest people for some advice on how you can also live a fulfilling life until the very end.

You can view the transcript for "How to Be the Oldest Person Alive" here (opens in new window) .

Describe physical, cognitive, and emotional development that occurs during adolescence
Describe physical, cognitive, and emotional development that occurs in adulthood
Differentiate between fluid and crystallized intelligence

Adolescence

Adolescence is a socially constructed concept. In pre-industrial society, children were considered adults when they reached physical maturity, but today we have an extended time between childhood and adulthood called adolescence. Adolescence is the period of development that begins at puberty and ends at emerging adulthood, or into the mid- to late 20s. In the United States, adolescence is seen as a time to develop independence from parents while remaining connected to them (Figure 15). The typical age range of adolescence is from 12 to 18 years, and this stage of development also has some predictable physical, cognitive, and psychosocial milestones.

Several people are congregated by the beach. There is a net in the background.

As noted above, adolescence begins with puberty. While the sequence of physical changes in puberty is predictable, the onset and pace of puberty vary widely. Several physical changes occur during puberty, such as adrenarche and gonadarche, the maturing of the adrenal glands and sex glands, respectively. Also during this time, primary and secondary sexual characteristics develop and mature. Primary sexual characteristics are organs specifically needed for reproduction, like the uterus and ovaries in females and testes in males. Secondary sexual characteristics are physical signs of sexual maturation that do not directly involve sex organs, such as development of breasts and hips in girls, and development of facial hair and a deepened voice in boys. Girls experience menarche, the beginning of menstrual periods, usually around 12–13 years old, and boys experience spermarche, the first ejaculation, around 13–14 years old.

During puberty, both sexes experience a rapid increase in height (i.e., growth spurt). For girls this begins between 8 and 13 years old, with adult height reached between 10 and 16 years old. Boys begin their growth spurt slightly later, usually between 10 and 16 years old, and reach their adult height between 13 and 17 years old. Both nature (i.e., genes) and nurture (e.g., nutrition, medications, and medical conditions) can influence height.

Because rates of physical development vary so widely among teenagers, puberty can be a source of pride or embarrassment. Early maturing boys tend to be stronger, taller, and more athletic than their later maturing peers. They are usually more popular, confident, and independent, but they are also at a greater risk for substance abuse and early sexual activity (Flannery, Rowe, & Gulley, 1993; Kaltiala-Heino, Rimpela, Rissanen, & Rantanen, 2001). Early maturing girls may be teased or overtly admired, which can cause them to feel self-conscious about their developing bodies. These girls are at a higher risk for depression, substance abuse, and eating disorders (Ge, Conger, & Elder, 2001; Graber, Lewinsohn, Seeley, & Brooks-Gunn, 1997; Striegel-Moore & Cachelin, 1999). Late blooming boys and girls (i.e., they develop more slowly than their peers) may feel self-conscious about their lack of physical development. Negative feelings are particularly a problem for late maturing boys, who are at a higher risk for depression and conflict with parents (Graber et al., 1997) and more likely to be bullied (Pollack & Shuster, 2000).

The adolescent brain also remains under development. Recall from your earlier study, that the brain consists of six regions: temporal lobe, brain stem, cerebellum, occipital lobe (includes the visual cortex), parietal lobe, and the frontal lobe. The frontal lobe consists of the prefrontal cortex, premotor cortex, and motor cortex. The prefrontal lobe lies just behind the forehead. Up until puberty, brain cells continue to bloom in the frontal region. Adolescents engage in increased risk-taking behaviors and emotional outbursts possibly because the frontal lobes of their brains are still developing (Figure 16). Recall that this area is often called the "CEO of the brain", as it is responsible for judgment, impulse control, and planning. It is still maturing into early adulthood, up until around age 25 (Casey, Tottenham, Liston, & Durston, 2005).

An illustration of a brain is shown with the frontal lobe labeled.

Brain maturity occurs when there is growth of new neural connections and the pruning of unused neurons and connections. According to recent research, the brain regions tend to develop from the back to the front of the brain. Also, myelin continues to grow around axons and neurons helping to speed transmission between the various regions of the brain.

Psychosocial Development

Adolescents continue to refine their sense of self as they relate to others. Erikson referred to the task of the adolescent as one of identity versus role confusion. Thus, in Erikson’s view, an adolescent’s main questions are “Who am I?” and “Who do I want to be?” Some adolescents adopt the values and roles that their parents expect for them. Other teens develop identities that are in opposition to their parents but align with a peer group. This is common as peer relationships become a central focus in adolescents’ lives.

As adolescents work to form their identities, they pull away from their parents, and the peer group becomes very important (Shanahan, McHale, Osgood, & Crouter, 2007). Despite spending less time with their parents, most teens report positive feelings toward them (Moore, Guzman, Hair, Lippman, & Garrett, 2004). Warm and healthy parent-child relationships have been associated with positive child outcomes, such as better grades and fewer school behavior problems, in the United States as well as in other countries (Hair et al., 2005).

It appears that most teens don’t experience adolescent storm and stress to the degree once famously suggested by G. Stanley Hall, a pioneer in the study of adolescent development. Only small numbers of teens have major conflicts with their parents (Steinberg & Morris, 2001), and most disagreements are minor. For example, in a study of over 1,800 parents of adolescents from various cultural and ethnic groups, Barber (1994) found that conflicts occurred over day-to-day issues such as homework, money, curfews, clothing, chores, and friends. These types of arguments tend to decrease as teens develop (Galambos & Almeida, 1992).

Emerging Adulthood

The next stage of development is emerging adulthood . This is a relatively newly defined period of lifespan development spanning from 18 years old to the mid-20s, characterized as an in-between time where identity exploration is focused on work and love.

When does a person become an adult? There are many ways to answer this question. In the United States, you are legally considered an adult at 18 years old. But other definitions of adulthood vary widely; in sociology, for example, a person may be considered an adult when she becomes self-supporting, chooses a career, gets married, or starts a family. The ages at which we achieve these milestones vary from person to person as well as from culture to culture. For example, in the African country of Malawi, 15-year-old Njemile was married at 14 years old and had her first child at 15 years old. In her culture she is considered an adult. Children in Malawi take on adult responsibilities such as marriage and work (e.g., carrying water, tending babies, and working fields) as early as 10 years old. In stark contrast, independence in Western cultures is taking longer and longer, effectively delaying the onset of adult life.

Why is it taking twenty-somethings so long to grow up? It seems that emerging adulthood is a product of both Western culture and our current times (Arnett, 2000). People in developed countries are living longer, allowing the freedom to take an extra decade to start a career and family. Changes in the workforce also play a role. For example, 50 years ago, a young adult with a high school diploma could immediately enter the work force and climb the corporate ladder. That is no longer the case. Bachelor’s and even graduate degrees are required more and more often—even for entry-level jobs (Arnett, 2000). In addition, many students are taking longer (five or six years) to complete a college degree as a result of working and going to school at the same time. After graduation, many young adults return to the family home because they have difficulty finding a job. Changing cultural expectations may be the most important reason for the delay in entering adult roles. Young people are spending more time exploring their options, so they are delaying marriage and work as they change majors and jobs multiple times, putting them on a much later timetable than their parents (Arnett, 2000).

Adulthood begins around 20 years old and has three distinct stages: early, middle, and late. Each stage brings its own set of rewards and challenges.

By the time we reach early adulthood (20 to early 40s), our physical maturation is complete, although our height and weight may increase slightly. In young adulthood, our physical abilities are at their peak, including muscle strength, reaction time, sensory abilities, and cardiac functioning. Most professional athletes are at the top of their game during this stage. Many women have children in the young adulthood years, so they may see additional weight gain and breast changes.

Middle adulthood extends from the 40s to the 60s (Figure 18). Physical decline is gradual. The skin loses some elasticity, and wrinkles are among the first signs of aging. Visual acuity decreases during this time. Women experience a gradual decline in fertility as they approach the onset of menopause, the end of the menstrual cycle, around 50 years old. Both men and women tend to gain weight: in the abdominal area for men and in the hips and thighs for women. Hair begins to thin and turn gray.

Late adulthood is considered to extend from the 60s on. This is the last stage of physical change. The skin continues to lose elasticity, reaction time slows further, and muscle strength diminishes. Smell, taste, hearing, and vision, so sharp in our twenties, decline significantly. The brain may also no longer function at optimal levels, leading to problems like memory loss, dementia, and Alzheimer’s disease in later years.

Because we spend so many years in adulthood (more than any other stage), cognitive changes are numerous. In fact, research suggests that adult cognitive development is a complex, ever changing process that may be even more active than cognitive development in infancy and early childhood (Fischer, Yan, & Stewart, 2003).

Researchers have identified areas of both losses and gains in cognition in older age. Cognitive ability and intelligence are often measured using standardized tests and validated measures. The psychometric approach has identified two categories of intelligence that show different rates of change across the life span (Schaie & Willis, 1996). Fluid intelligence refers to information processing abilities, such as logical reasoning, remembering lists, spatial ability, and reaction time. Crystallized intelligence encompasses abilities that draw upon experience and knowledge. Measures of crystallized intelligence include vocabulary tests, solving number problems, and understanding texts.

Photograph of an older man holding a cane while getting off of his moped.

With age, systematic declines are observed on cognitive tasks requiring self-initiated, effortful processing, without the aid of supportive memory cues (Park, 2000). Older adults tend to perform poorer than young adults on memory tasks that involve recall of information, where individuals must retrieve information they learned previously without the help of a list of possible choices. For example, older adults may have more difficulty recalling facts such as names or contextual details about where or when something happened (Craik, 2000). What might explain these deficits as we age? As we age, working memory, or our ability to simultaneously store and use information, becomes less efficient (Craik & Bialystok, 2006). The ability to process information quickly also decreases with age. This slowing of processing speed may explain age differences on many different cognitive tasks (Salthouse, 2004). Some researchers have argued that inhibitory functioning, or the ability to focus on certain information while suppressing attention to less pertinent information, declines with age and may explain age differences in performance on cognitive tasks (Hasher & Zacks, 1988). Finally, it is well established that our hearing and vision decline as we age. Longitudinal research has proposed that deficits in sensory functioning explain age differences in a variety of cognitive abilities (Baltes & Lindenberger, 1997).

Fewer age differences are observed when memory cues are available, such as for recognition memory tasks, or when individuals can draw upon acquired knowledge or experience. For example, older adults often perform as well if not better than young adults on tests of word knowledge or vocabulary. With age often comes expertise, and research has pointed to areas where aging experts perform as well or better than younger individuals. For example, older typists were found to compensate for age-related declines in speed by looking farther ahead at printed text (Salthouse, 1984). Compared to younger players, older chess experts are able to focus on a smaller set of possible moves, leading to greater cognitive efficiency (Charness, 1981). Accrued knowledge of everyday tasks, such as grocery prices, can help older adults to make better decisions than young adults (Tentori, Osheron, Hasher, & May, 2001).

How do changes or maintenance of cognitive ability affect older adults’ everyday lives? Researchers have studied cognition in the context of several different everyday activities. One example is driving. Although older adults often have more years of driving experience, cognitive declines related to reaction time or attentional processes may pose limitations under certain circumstances (Park & Gutchess, 2000). Research on interpersonal problem solving suggested that older adults use more effective strategies than younger adults to navigate through social and emotional problems (Blanchard-Fields, 2007). In the context of work, researchers rarely find that older individuals perform poorer on the job (Park & Gutchess, 2000). Similar to everyday problem solving, older workers may develop more efficient strategies and rely on expertise to compensate for cognitive decline.

How can we delay the onset of cognitive decline? Mental and physical activity seems to play a part (Figure 20). Research has found adults who engage in mentally and physically stimulating activities experience less cognitive decline and have a reduced incidence of mild cognitive impairment and dementia (Hertzog, Kramer, Wilson, & Lindenberger, 2009; Larson et al., 2006; Podewils et al., 2005).

There are many theories about the social and emotional aspects of aging. Some aspects of healthy aging include activities, social connectedness, and the role of a person’s culture. According to many theorists, including George Vaillant (2002), who studied and analyzed over 50 years of data, we need to have and continue to find meaning throughout our lives. For those in early and middle adulthood, meaning is found through work (Sterns & Huyck, 2001) and family life (Markus, Ryff, Curan, & Palmersheim, 2004). These areas relate to the tasks that Erikson referred to as intimacy versus isolation in early adulthood and generativity versus stagnation in middle adulthood. As mentioned previously, adults tend to define themselves by what they do—their careers. Earnings peak during this time, yet job satisfaction is more closely tied to work that involves contact with other people, is interesting, provides opportunities for advancement, and allows some independence (Mohr & Zoghi, 2006) than it is to salary (Iyengar, Wells, & Schwartz, 2006). How might being unemployed or being in a dead-end job challenge adult well-being?

As people enter the final stages of life, they have what Erik Erikson described as a crisis over integrity versus despair. In other words, they review the events of their lives and try to come to terms with the mark (or lack thereof) that they have made on the world. People who believe they have had a positive impact on the world through their contributions live the end of life with a sense of integrity. Those who feel they have not measured up to certain standards—either their own or others'—develop a sense of despair.

Positive relationships with significant others in our adult years have been found to contribute to a state of well-being (Ryff & Singer, 2009). Most adults in the United States identify themselves through their relationships with family—particularly with spouses, children, and parents (Markus et al., 2004). While raising children can be stressful, especially when they are young, research suggests that parents reap the rewards down the road, as adult children tend to have a positive effect on parental well-being (Umberson, Pudrovska, & Reczek, 2010). Having a stable marriage has also been found to contribute to well-being throughout adulthood (Vaillant, 2002).

Another aspect of positive aging is believed to be social connectedness and social support. As we get older, socioemotional selectivity theory suggests that our social support and friendships dwindle in number, but remain as close, if not more close than in our earlier years (Carstensen, 1992) (Figure 21).

Putting It Together: Lifespan Development

In this chapter, you learned to

compare and contrast theories lifespan development theories
explain the physical, cognitive, and emotional development that occurs from infancy through childhood
describe physical, cognitive, and emotional development in adolescence and adulthood

Our understanding of human nature has come a long way since the belief that children were just little adults in need of instruction. Through ongoing research, we now know that children hit certain milestones that enable them to take another viewpoint or understand the law of conservation, that babies can understand enough about the world around them to make moral judgments, and that issues of physical, social, and cognitive importance change across the lifespan.

Adolescence is one of the time periods of interest to psychologists, especially due to the focus on identity formation, which often involves a period of exploration followed by commitments to particular identities. Adolescence is characterized by risky behavior, which is made more likely by changes in the brain in which reward-processing centers develop more rapidly than cognitive control systems, making adolescents more sensitive to rewards than to possible negative consequences.

Marcia (1966) described identify formation during adolescence as involving both decision points and commitments with respect to ideologies (e.g., religion, politics) and occupations. He described four identity statuses: foreclosure, identity diffusion, moratorium, and identity achievement.

Foreclosure occurs when an individual commits to an identity without exploring options.
Identity diffusion occurs when adolescents neither explore nor commit to any identities.
Moratorium is a state in which adolescents are actively exploring options but have not yet made commitments.
Identity achievement occurs when individuals have explored different options and then made identity commitments.

Think about your own adolescent experience (you may consider yourself still in this life stage). Which identity status best fits with your own experience? Do you feel committed to your current identity, or do you feel as though you are still developing? Regardless of your answer, you can rest assured that human development does not end with adolescence, and research proves that people can continue to learn, grow, and even change as long as they would like.

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study of development using norms, or average ages, when most children reach specific developmental milestones

all of the beliefs, customs, art, and traditions of a particular society

view that development is a cumulative process: gradually improving on existing skills

view that development takes place in unique stages, which happen at specific times or ages

process proposed by Freud in which pleasure-seeking urges focus on different erogenous zones of the body as humans move through five stages of life

domain of lifespan development that examines emotions, personality, and social relationships from infancy through adulthood, proposed by Erikson

(plural = schemata) mental construct consisting of a cluster or collection of related concepts

adjustment of a schema by adding information similar to what is already known

adjustment of a schema by changing a scheme to accommodate new information different from what was already known

idea that even if something is out of sight, it still exists

second stage in Piaget’s theory of cognitive development; from ages 2 to 7, children learn to use symbols and language but do not understand mental operations and often think illogically

idea that even if you change the appearance of something, it is still equal in size, volume, or number as long as nothing is added or removed

preoperational child’s difficulty in taking the perspective of others

third stage in Piaget’s theory of cognitive development; from about 7 to 11 years old, children can think logically about real (concrete) events

principle that objects can be changed, but then returned back to their original form or condition

structure created when a sperm and egg merge at conception; begins as a single cell and rapidly divides to form the embryo and placenta

multi-cellular organism in its early stages of development

structure connected to the uterus that provides nourishment and oxygen to the developing baby

medical care during pregnancy that monitors the health of both the mother and the fetus

time during fetal growth when specific parts or organs develop

inborn automatic response to a particular form of stimulation that all healthy babies are born with

ability to move our body and manipulate objects

use of muscles in fingers, toes, and eyes to coordinate small actions

use of large muscle groups to control arms and legs for large body movements

long-standing connection or bond with others

parental presence that gives the infant/toddler a sense of safety as they explore their surroundings

characterized by the child using the parent as a secure base from which to explore

characterized by child’s unresponsiveness to parent, does not use the parent as a secure base, and does not care if parent leaves

characterized by the child’s tendency to show clingy behavior and rejection of the parent when they attempt to interact with the child

characterized by the child’s odd behavior when faced with the parent; type of attachment seen most often with kids that are abused

parents give children reasonable demands and consistent limits, express warmth and affection, and listen to the child’s point of view

parents place a high value on conformity and obedience, are often rigid, and express little warmth to the child

parents make few demands and rarely use punishment

parents are indifferent, uninvolved, and sometimes referred to as neglectful; they don’t respond to the child’s needs and make relatively few demands

period of development that begins at puberty and ends at early adulthood

newly defined period of lifespan development from 18 years old to the mid-20s; young people are taking longer to complete college, get a job, get married, and start a family

information processing abilities, such as logical reasoning, remembering lists, spatial ability, and reaction time

intelligence that draw upon experience and knowledge. Measures include vocabulary tests, solving number problems, and understanding texts

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1.1: Introduction to Life Span, Growth and Development

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Page ID 2973

Laura Overstreet
Western Washington University

Learning Objectives

Explain the study of human development.
Define physical, cognitive, and psychosocial development.
Differentiate periods of human development.
Analyze your own location in the life span.
Judge the most and least preferable age groups with which to work.
Contrast social classes with respect to life chances.
Explain the meaning of social cohort.
Critique stage theory models of human development.
Define culture and ethnocentrism and describe ways that culture impacts development.
Explain the reasons scientific methods are more objective than personal knowledge.
Contrast qualitative and quantitative approaches to research.
Compare research methods noting the advantages and disadvantages of each.
Differentiate between independent and dependent variables.

Welcome to life span, growth and development. This is the study of how and why people change or remain the same over time.

This course is commonly referred to as the “womb to tomb” course because it is the story of our journeys from conception to death. Human development is the study of how we change over time. Although this course is often offered in psychology, this is a very interdisciplinary course. Psychologists, nutritionists, sociologists, anthropologists, educators, and health care professionals all contribute to our knowledge of the life span.

We will look at how we change physically over time from early development through aging and death. We examine cognitive change, or how our ability to think and remember changes over time. We look at how our concerns and psychological state is influenced by age and finally, how our social relationships change throughout life.

There are several goals of those involved in this discipline:

1. Describing change - many of the studies we will examine simply involve the first step in investigation, which is description. Arnold Gesell’s study on infant motor skills, for example.

2. Explaining changes is another goal. Theories provide explanations for why we change over time. For example, Erikson offers an explanation about why our two-year-old is temperamental.

Think about how you were 5, 10, or even 15 years ago. In what ways have you changed? In what ways have you remained the same? You have probably changed physically; perhaps you’ve grown taller and become heavier. But you may have also experienced changes in the way you think and solve problems. Cognitive change is noticeable when we compare how 6 year olds, 16 year olds, and 46 year olds think and reason, for example. Their thoughts about others and the world are probably quite different. Consider friendship for instance. The 6 year old may think that a friend is someone with whom you can play and have fun. A 16 year old may seek friends who can help them gain status or popularity. And the 46 year old may have acquaintances, but rely more on family members to do things with and confide in. You may have also experienced psychosocial change. This refers emotions and psychological concerns as well as social relationships. Psychologist Erik Erikson suggests that we struggle with issues of independence, trust, and intimacy at various points in our lives. (We will explore this thoroughly throughout the course.)

Our journeys through life are more than biological; they are shaped by culture, history, economic and political realities as much as they are influenced by physical change. This is a very interesting and practical course because it is about us and those with whom we live and work. One of the best ways to gain perspective on our own lives is to compare our experiences with that of others. By periodically making cross-cultural and historical comparisons and by presenting a variety of views on issues such as healthcare, aging, education, gender and family roles, I hope to give you many eyes with which to see your own development. This occurs frequently in the classroom as students from a variety of cultural backgrounds discuss their interpretations of developmental tasks and concerns. I hope to recreate this rich experience as much as possible in this text. So, for example, we will discuss current concerns about the nutrition of children in the United States (for a middle-class boy of 11 years who is 130 pounds overweight and suffering with Pediatric Type II diabetes) as well as malnutrition experienced by children in Ethiopia as a result of drought. Being self-conscious can enhance our ability to think critically about the systems we live in and open our eyes to new courses of action to benefit the quality of life. And knowing about other people and their circumstances can help us live and work with them more effectively. An appreciation of diversity enhances the social skills needed in nursing, education, or any other field.

New Assumptions and Understandings

I took my first graduate course in life span over 20 years ago. Much time was spent on the period of childhood, less on adolescence, and very little attention was given to adulthood. The message was clear: once you are 25, your development is essentially completed. Our academic knowledge of the life span has changed and although there is still less research on adulthood than on childhood, adulthood is gaining increasing attention. This is particularly true now that the large cohort known as the baby boomers are beginning to enter late adulthood. There is so much we need to find out about love, housing, health, nutrition, exercise, social, and emotional development with this large group. (Visit your local bookstore or search the internet and you will find many new titles in the self-help and psychology sections that address this population.)

I was also introduced to the theories of Freud, Erikson, and Piaget, the classic stage theorists whose models depict development as occurring in a series of predictable stages. Stage theories had a certain appeal to an American culture experiencing dramatic change in the early part of the 20th century. But that sense of security was not without its costs; those who did not develop in predictable ways were often thought of as delayed or abnormal. And Freudian interpretations of problems in childhood development, such as autism, held that such difficulties were in response to poor parenting. Imagine the despair experienced by mothers accused of causing their child’s autism by being cold and unloving. It was not until the 1960s that more medical explanations of autism began to replace Freudian assumptions.

Freud and Piaget present a series of stages that essentially end during adolescence. For Freud, we enter the genital stage in which much of our motivation is focused on sex and reproduction and this stage continues through adulthood. Piaget’s fourth stage, formal operational thought, begins in adolescence and continues through adulthood. Again, neither of these theories highlights developmental changes during adulthood. Erikson, however, presents eight developmental stages that encompass the entire lifespan. For that reason, Erikson is known as the “father” of developmental psychology and his psychosocial theory will form the foundation for much of our discussion of psychosocial development.

Today we are more aware of the variations in development and the impact that culture and the environment have on shaping our lives. We no longer assume that those who develop in predictable ways are normal and those who do not are abnormal. And the assumption that early childhood experiences dictate our future is also being called into question. Rather, we have come to appreciate that growth and change continues throughout life and experience continues to have an impact on who we are and how we relate to others. And we recognize that adulthood is a dynamic period of life marked by continued cognitive, social, and psychological development.

Who Studies Human Development?

Many academic disciplines contribute to the study of life span and this course is offered in some schools as psychology; in other schools it is taught under sociology or human development. This multidisciplinary course is made up of contributions from researchers in the areas of health care, anthropology, nutrition, child development, biology, gerontology, psychology, and sociology among others. Consequently, the stories provided are rich and well-rounded and the theories and findings can be part of a collaborative effort to understand human lives.

Many Contexts

People are best understood in context. What is meant by the word “context”? It means that we are influenced by when and where we live and our actions, beliefs, and values are a response to circumstances surrounding us. Sternberg describes a type of intelligence known as “contextual” intelligence as the ability to understand what is called for in a situation (Sternberg, 1996). The key here is to understand that behaviors, motivations, emotions, and choices are all part of a bigger picture. Our concerns are such because of who we are socially, where we live, and when we live; they are part of a social climate and set of realities that surround us. Our social locations include cohort, social class, gender, race, ethnicity, and age. Let’s explore two of these: cohort and social class.

Aries, P. (1962). Centuries of childhood. A social history of family life. New York: Vintage.

Davis, N. (1999). Youth crisis: Growing up in the high risk society. Westport, CN: Praeger.

Debt juggling. The new middle class addiction. (2005, March/April). The Sunday Times Review. Retrieved from www.timesonline.co.uk/article/o..2092-1551813.00.html

DeNavas-Walt, C., & Cleveland, R. W. (2002). Money income in the United States: 2001. Current population reports. (P60-218) (United States, U. S. Census Bureau). U. S. Government Printing Office.

Gilbert, D. (2003). The American class structure in an age of growing inequality. (6th ed.). Belmont, CA: Wadsworth.

Gilbert, D., & Kahl, J. A. (1998). The American class structure. (5th ed.). Belmont, CA: Wadsworth.

Glazer, B. G., & Strauss, A. L. (1967). The discovery of grounded theory: Strategies for qualitative research. New York: Aldine.

Kohn, M. L. (1977). Class and conformity: A study in values. (2nd ed.). Homewood, IL: Dorsey.

Mawathe, A. (2006, March/April). Period misery for Kenya schoolgirls. BBC News. Retrieved August 10, 2006, from http://news.bbc.co.uk/hi/africa/4816558.stm

Seccombe, K., & Warner, R. L. (2004). Marriages and families: Relationships in social context. Belmont, CA: Wadsworth.

Sternberg, R. J. (1996). Sucessful intelligence. New York: Simon and Shuster.

The secret life of the credit card. (2004). PBS: Public Broadcasting Service. Retrieved May 02, 2011, from http://www.pbs.org/cgi-registry/generic/trivia.cgi

Thornton, S. (2005, June/July). Karl Popper (Stanford Encyclopedia of Philosophy/Summer 2005 Edition). Stanford Encyclopedia of Philosophy. Retrieved May 02, 2011, from http://plato.stanford.edu/archives/s...entries/popper

United States, U. S. Census Bureau, Housing and Household Economics Statistics Division. (2005). Poverty Thresholds 2005. Retrieved August 10, 2006, from http://www.census.gov/hhes/www/pover.../thresh05.html

Weitz, R. (2007). The sociology of health, illness, and health care: A critical approach, (4th ed.). Belmont, CA: Thomson.

Chapter 1: Introduction to Life Span Development

Photo shows multiple generations of people at a family reunion.

Learning Objectives:

At the end of this chapter, you should be able to:

Explain the study of human development
Define physical, cognitive, and psychosocial development
Differentiate periods of human development
Analyze your location in the lifespan
Critique stage theory models of human development
Define culture and ethnocentrism and describe ways that culture impacts development

Welcome to Life Span Growth and Development . This studies how and why people change or remain the same over time, which can also be referred to as Human Development .

Think about how you were five, ten, or even fifteen years ago. How have you changed? How have you remained the same?

In this textbook, we will look at how:

We change physically from early development through aging and death.
Our cognitive changes, or the ability to think and remember.
Our concerns and psychological state are influenced by age.
Our social relationships change throughout life.

New Assumptions, Understandings, and Expectations

Our journeys through life are more than biological; they are shaped by cultural, historical, economic, and political realities as much as they are influenced by physical change. One of the best ways to gain perspective on our own lives is to compare our experiences with those of others. This text hopes to give you many eyes to see your development by periodically making cross-cultural and historical comparisons and presenting various views on healthcare, aging, education, gender, and family roles.

Today, we are more aware of the variations in development and the impact that culture and the environment have on shaping our lives. We no longer assume that those who develop in predictable ways are normal and those who do not are abnormal. The assumption that early childhood experiences dictate our future is also being questioned. Instead, we have come to appreciate that growth and change are steady throughout life, and experience continues to impact who we are and how we relate to others. We recognize that adulthood is a dynamic period of life marked by continued cognitive, social, and psychological development.

This text hopes to recreate a rich experience where students from various cultural backgrounds discuss their interpretations of developmental tasks and concerns as much as possible. Another highlight of the text is that you will notice the discussions of various developmental factors that target Louisianans. What a great way for native students to discover how their Louisiana culture influences their development.

C’est parti! or “Let’s Begin!”

Culture is often referred to as a blueprint or guideline shared by a group that specifies how to live. It includes ideas about right and wrong, what to strive for, what to eat, how to speak, what is valued, and what kinds of emotions are called for in certain situations. Culture teaches us how to live in a society and allows us to advance because each new generation can benefit from the solutions found and passed down from previous generations.

Culture is learned from parents, schools, churches, media, friends, and others throughout life. The traditions and values that evolve in a particular culture help members function and value their society. We tend to believe that our culture’s practices and expectations are exemplary. (This belief that our own culture is superior is called ethnocentrism and is a normal by-product of growing up in a culture. It becomes a roadblock, however, when it inhibits understanding of cultural practices from other societies.) Cultural relativity is an appreciation for cultural differences and the understanding that cultural practices are best understood from the standpoint of that particular culture.

Culture is an essential context for human development, and understanding development requires identifying which development features are culturally based. This understanding is somewhat new and still being explored. So much of what developmental theorists have described in the past has been culturally bound and difficult to apply to various cultural contexts. The reader should remember this and realize that much is still unknown when comparing development across cultures.

For example :

Erikson’s assumption that teenagers struggle with identity assumes that all teenagers live in a society with many options and must make individual choices about their future. In many parts of the world, one’s identity is determined by family status or society’s dictates. In other words, there is no choice.

Think of other ways culture may have affected your development. How might cultural differences influence interactions between teachers and students, nurses and patients, or other relationships?

Periods of Development

Developmentalism breaks the life span into nine stages as follows:

Prenatal Development

Infancy and toddlerhood, early childhood, middle childhood, adolescence, emerging and early adulthood, middle adulthood, late adulthood, death and dying.

This list reflects unique aspects of the various stages of childhood and adulthood that will be explored in this book. So, while an 8-month-old and an 8-year-old are considered children, they have very different motor abilities, social relationships, and cognitive skills. Their nutritional needs differ, and their primary psychological concerns are distinctive. The same is true of an 18-year-old and an 80-year-old, both considered adults.

Here is a brief overview of the stages:

Photo shows a human embryo at approximately six weeks gestational age.

Conception occurs, and development begins. All of the significant structures of the body are forming, and the mother’s health is of primary concern. Understanding nutrition, teratogens (or environmental factors that can lead to congenital disabilities), and labor and delivery are primary concerns.

The first year and a half to two years of life are ones of dramatic growth and change known as infancy and toddlerhood . A newborn with a keen sense of hearing but impoverished vision is transformed into a walking, talking toddler within a relatively short time. Caregivers are also converted from someone who manages feeding and sleep schedules to a constantly moving guide and safety inspector for a mobile, energetic child.

Photo shows a toddler playing outside in a rock garden.

Early childhood is also called the preschool years that follow toddlerhood and precede formal schooling. As a three-to-five-year-old, the child is busy learning language, gaining a sense of self and greater independence, and learning the workings of the physical world. However, this knowledge does not come quickly, and preschoolers may have initially had interesting conceptions of size, time, space, and distance, such as fearing that they may go down the drain if they sit at the front of the bathtub. A toddler’s fierce determination to do something may give way to a four-year-old’s sense of guilt for doing something that brings the disapproval of others.

The photo shows a boy and girl posing before school.

The ages of six through eleven comprise middle childhood , and much of what children experience at this age is connected to their involvement in the early grades of school. Now, the world has become one of learning and testing new academic skills and assessing one’s abilities and accomplishments by comparing oneself and others. Growth rates slow down, and children can refine their motor skills at this point in life. Children learn about social relationships beyond the family through interaction with friends and fellow students.

The photo shows a girl posing with her diploma on high school graduation day.

Adolescence is a dramatic physical change marked by an overall physical growth spurt and sexual maturation, known as puberty. It is also a time of cognitive change as the adolescent begins to think of new possibilities and to consider abstract concepts such as love, fear, and freedom. Ironically, adolescents have a sense of invincibility that puts them at greater risk of dying from accidents or contracting sexually transmitted infections that can have lifelong consequences.

The photo is a selfie of an early adult male working a restaurant job.

The twenties and thirties are often thought of as early or emerging adulthood . It is a time when we are at our physiological peak but are most at risk for involvement in violent crimes and substance abuse. It is a time of focusing on the future and putting a lot of energy into making choices that will help one earn the status of a full adult in the eyes of others. Love and work are primary concerns at this stage of life.

The photo shows a couple in middle adulthood. Courtesy of Fritzi Prejean, Carencro, LA.

The late thirties through the mid-sixties is referred to as middle adulthood . This is a period in which aging, which began earlier, becomes more noticeable and a period at which many people are at their peak of productivity in love and work. It may be a period of gaining expertise in specific fields, understanding problems, and finding solutions more efficiently than before. It can also be a time of becoming more realistic about previously considered possibilities and recognizing the difference between what is possible and what is likely.

Two photos of ladies in late adulthood. Courtesy of Tremika Cleary and Tamika Thomas, Lafayette, LA.

This life span has increased in the last 100 years, particularly in industrialized countries. Late adulthood is sometimes subdivided into two or three categories, such as the “young old” and “old old” or the “young old,” “old old,” and “oldest old.” We will follow the former categorization and distinguish between the “young old” people between 65 and 79 and the “old old” or those who are 80 and older.

One of the primary differences between these groups is that the “young old” are very similar to midlife adults: still working, still relatively healthy, and still interested in being productive and active. The “old old” remain energetic, and most continue living independently. Still, risks of diseases associated with aging, such as arteriosclerosis, cancer, and cerebral vascular disease, increase substantially for this age group. Housing, healthcare, and extending active life expectancy are only a few topics of concern for this age group.

A better way to appreciate the diversity of people in late adulthood is to go beyond chronological age and examine whether a person is experiencing optimal aging (excellent health and continues to have an active, stimulating life), normal aging (in which the changes are similar to most of those of the same age), or impaired aging (referring to someone who has more physical challenge and disease than others of the same age group).

The photo shows a casket at a burial site with pall bearers bowed in prayer. Courtesy of Tremika Cleary.

This topic is seldom given the amount of coverage it deserves. Of course, there is a certain discomfort in thinking about death, but there is also a certain confidence and acceptance that can come from studying death and dying. We will be examining the physical, psychological, and social aspects of death, exploring grief or bereavement, and addressing ways in which helping professionals work in death and dying . We will discuss cultural variations in mourning, burial, and grief.

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De Wit, D. J., Karioja, K., Rye, B. J., & Shain, M. (2011). Perceptions of declining classmate and teacher support following the transition to high school: Potential correlates of increasing student mental health difficulties. Psychology in the Schools, 48, 556-572.

Dishion, T. J., & Tipsord, J. M. (2011). Peer contagion in child and adolescent social and emotional development. Annual Review of Psychology, 62, 189–214.

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Attribution

This chapter was adapted by Tremika Cleary from select chapters in Iowa State University Digital Press Individual and Family Development, Health, and Well-being , authored by Diana Lang; Nick Cone; Tera Jones; and Lumen Learning, available under a Creative Commons Attribution-ShareAlike 4.0 International License .

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Prenatal development is when conception occurs, and development begins.

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Life Span Development, Essay Example

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It was the philosopher Plato that stated ” People are like soil. They can either nourish you and help you grow as a person or they can stunt your growth and make you wilt and die”. This actually starts off with your parents and your childhood upbringing. Your parents can educate you and guide you in order to help you grow. This is accomplished by providing the right learning environment, the right type of learning materials, the right type of encouragement and instil in you a degree of positive thinking. These are elements that nourish your brain and help you to grow into an adult. Similar to feeding soil with the right kind of nutrients that plants require in order to help them flourish and grow. They require more than just sunlight and water they have to be fed with the right nutrients in order to stimulate growth.

Developmental changes may be considered the result of biological, cognitive and socio emotional processes. Biological theories relate to changes in the individuals physical nature, Cognitive changes impact changes in thought, intelligence and language whereas socioemotional impacts those changes in association with relationships with people i.e. changes in emotion or personality . Of particular importance is Vygotsky’s Sociocultural cognitive theory where he emphasises that in Childrens behaviour the actively construct their knowledge and how social interaction can actually aid cognitive development. Learning being based on the mentorship approach of passing on knowledge and skills. Equally Piaget acknowledged the importance of organization and adaption in the structuring of the thought process, with four stages of distinct cognitive development in Children. (Santrock)

Human beings are no different in this regard. Parents tend for the young plants (children) and provide for their stimulation and growth at the most vulnerable times. Conversely if your parents neglect your upbringing, they offer no encouragement, become disinterested in your learning and growth, then the child can become stunted in terms of learning, education and growth. Sadly this can also lead to death. Consider children that become juvenile delinquents and turn towards street crime and drugs. Equally it may be more innocent where you are a child of very poor people like in the Sudan or parts of Africa. Your parents cannot afford to nourish you with education and learning and equally feed you to stimulate growth. Such sad circumstances also lead to childhood deprivation and in the extreme cases death

Works Cited

Santrock, John. “Life Span Development 12th Edition.” Santrock, John. Life Span Development 12th Edition. London UK: McGraw Hill, 2009. 832.

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IELTS academic task 1 sample essay 15: average life expectancy per country

Home » Academic writing task 1 sample essays & answer » IELTS academic task 1 sample essay 15: average life expectancy per country

In the graph above, average life expectancy (in years) is compared for six countries: Monaco, the United States, the Philippines, Laos, Rwanda, and South Africa.

The graph organizes the country from longest life expectancy to shortest, left to right. Individuals in Monaco have the longest life expectancy, well over 84 years. Next highest is the United States, with a life expectancy around 75 years. The Philippines is third highest, Laos is fourth, and Rwanda second to last. All of these have a life expectancy of more than 52 years. Of the six countries surveyed here, only South Africa has a life expectancy lower than this.

In summary, life expectancies from this survey of six countries vary widely. That of Monaco (with the highest life expectancy) approaches twice that of South Africa (with the lowest life expectancy). In this graph, Europe and the US have the longest life expectancies, Asia is in the middle, and the African countries have the shortest life expectancies.

(162 words)

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Essays About Life: Top 5 Examples Plus 7 Prompts

Life envelops various meanings; if you are writing essays about life, discover our comprehensive guide with examples and prompts to help you with your essay.

What is life? You can ask anyone; I assure you, no two people will have the same answer. How we define life relies on our beliefs and priorities. One can say that life is the capacity for growth or the time between birth and death. Others can share that life is the constant pursuit of purpose and fulfillment. Life is a broad topic that inspires scholars, poets, and many others. It stimulates discussions that encourage diverse perspectives and interpretations.

5 Essay Examples

1. essay on life by anonymous on toppr.com, 2. the theme of life, existence and consciousness by anonymous on gradesfixer.com, 3. compassion can save life by anonymous on papersowl.com, 4. a life of consumption vs. a life of self-realization by anonymous on ivypanda.com, 5. you only live once: a motto for life by anonymous on gradesfixer.com, 1. what is the true meaning of life, 2. my life purpose, 3. what makes life special, 4. how to appreciate life, 5. books about life, 6. how to live a healthy life, 7. my idea of a perfect life.

“…quality of Life carries huge importance. Above all, the ultimate purpose should be to live a meaningful life. A meaningful life is one which allows us to connect with our deeper self.”

The author defines life as something that differentiates man from inorganic matter. It’s an aspect that processes and examines a person’s actions that develop through growth. For some, life is a pain because of failures and struggles, but it’s temporary. For the writer, life’s challenges help us move forward, be strong, and live to the fullest. You can also check out these essays about utopia .

“… Kafka defines the dangers of depending on art for life. The hunger artist expresses his dissatisfaction with the world by using himself and not an external canvas to create his artwork, forcing a lack of separation between the artist and his art. Therefore, instead of the art depending on the audience, the artist depends on the audience, meaning when the audience’s appreciation for work dwindles, their appreciation for the artist diminishes as well, leading to the hunger artist’s death.”

The essay talks about “ A Hunger Artist ” by Franz Kafka, who describes his views on life through art. The author analyzes Kafka’s fictional main character and his anxieties and frustrations about life and the world. This perception shows how much he suffered as an artist and how unhappy he was. Through the essay, the writer effectively explains Kafka’s conclusion that artists’ survival should not depend on their art.

“Compassion is that feeling that we’ve all experienced at some point in our lives. When we know that there is someone that really cares for us. Compassion comes from that moment when we can see the world through another person’s eyes.”

The author is a nurse who believes that to be professional, they need to be compassionate and treat their patients with respect, empathy, and dignity. One can show compassion through small actions such as talking and listening to patients’ grievances. In conclusion, compassion can save a person’s life by accepting everyone regardless of race, gender, etc.

“… A life of self-realization is more preferable and beneficial in comparison with a life on consumption. At the same time, this statement may be objected as person’s consumption leads to his or her happiness.”

The author examines Jon Elster’s theory to find out what makes a person happy and what people should think and feel about their material belongings. The essay mentions a list of common activities that make us feel happy and satisfied, such as buying new things. The writer explains that Elster’s statement about the prevalence of self-realization in consumption will always trigger intense debate.

“Appreciate the moment you’ve been given and appreciate the people you’ve been given to spend it with, because no matter how beautiful or tragic a moment is, it always ends. So hold on a little tighter, smile a little bigger, cry a little harder, laugh a little louder, forgive a little quicker, and love a whole lot deeper because these are the moments you will remember when you’re old and wishing you could rewind time.”

This essay explains that some things and events only happen once in a person’s life. The author encourages teenagers to enjoy the little things in their life and do what they love as much as they can. When they turn into adults, they will no longer have the luxury to do whatever they want.

The author suggests doing something meaningful as a stress reliever, trusting people, refusing to give up on the things that make you happy, and dying with beautiful memories. For help with your essays, check out our round-up of the best essay checkers .

7 Prompts for Essays About Life

Essays About Life: What is the true meaning of life?

Life encompasses many values and depends on one’s perception. For most, life is about reaching achievements to make themselves feel alive. Use this prompt to compile different meanings of life and provide a background on why a person defines life as they do.

Take Joseph Campbell’s, “Life has no meaning. Each of us has meaning, and we bring it to life. It is a waste to be asking the question when you are the answer,” for example. This quote pertains to his belief that an individual is responsible for giving life meaning.

For this prompt, share with your readers your current purpose in life. It can be as simple as helping your siblings graduate or something grand, such as changing a national law to make a better world. You can ask others about their life purpose to include in your essay and give your opinion on why your answers are different or similar.

Life is a fascinating subject, as each person has a unique concept. How someone lives depends on many factors, such as opportunities, upbringing, and philosophies. All of these elements affect what we consider “special.”

Share what you think makes life special. For instance, talk about your relationships, such as your close-knit family or best friends. Write about the times when you thought life was worth living. You might also be interested in these essays about yourself .

Life in itself is a gift. However, most of us follow a routine of “wake up, work (or study), sleep, repeat.” Our constant need to survive makes us take things for granted. When we endlessly repeat a routine, life becomes mundane. For this prompt, offer tips on how to avoid a monotonous life, such as keeping a gratitude journal or traveling.

Many literary pieces use life as their subject. If you have a favorite book about life, recommend it to your readers by summarizing the content and sharing how the book influenced your outlook on life. You can suggest more than one book and explain why everyone should read them.

For example, Paulo Coelho’s “The Alchemist” reminds its readers to live in the moment and never fear failure.

Essays About Life: How to live a healthy life?

To be healthy doesn’t only pertain to our physical condition. It also refers to our mental, spiritual, and emotional well-being. To live a happy and full life, individuals must strive to be healthy in all areas. For this prompt, list ways to achieve a healthy life. Section your essay and present activities to improve health, such as eating healthy foods, talking with friends, etc.

No one has a perfect life, but describe what it’ll be like if you do. Start with the material things, such as your house, clothes, etc. Then, move to how you connect with others. In your conclusion, answer whether you’re willing to exchange your current life for the “perfect life” you described and why. See our essay writing tips to learn more!

Maria Caballero is a freelance writer who has been writing since high school. She believes that to be a writer doesn't only refer to excellent syntax and semantics but also knowing how to weave words together to communicate to any reader effectively.

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Approaches to Lifespan Writing Research: Generating an Actionable Coherence

Lifespan writing, identity, writing studies, Society, Culture, Linguistics

Edited by Ryan J. Dippre and Talinn Phillips Copy edited by Don Donahue. Designed by Mike Palmquist.

Front Matter

Acknowledgments

Preface , Charles Bazerman DOI: 10.37514/PER-B.2020.1053.1.1

Introduction. Generating Murmurations for an Actionable Coherence , Ryan J. Dippre and Talinn Phillips DOI: 10.37514/PER-B.2020.1053.1.3

Part 1. Embracing the Radical

Chapter 1. Across, Through, and With: Ontological Orientations for Lifespan Writing Research , Anna Smith DOI: 10.37514/PER-B.2020.1053.2.01

Chapter 2. Always Already Relocalized: The Protean Nature of Context in Lifespan Writing Research , Ryan J. Dippre and Anna Smith DOI: 10.37514/PER-B.2020.1053.2.02

Chapter 3. Quantitative Perspectives to the Study of Writing Across the Lifespan: A Conceptual Overview and Focus on Structural Equation Modeling , Matthew C. Zajic and Apryl L. Poch DOI: 10.37514/PER-B.2020.1053.2.03

Chapter 4. Making Sense of a Person’s Literate Life: Literacy Narratives in a 100-Year-Study on Literacy Development , Magdalena Knappik DOI: 10.37514/PER-B.2020.1053.2.04

Chapter 5. A Definition of Everyday Writing: Methods for a Writer-Informed Approach to Lifespan Writing , Jeff Naftzinger DOI: 10.37514/PER-B.2020.1053.2.05

Chapter 6. Revisiting Participants After Publication: Continuing Writing Partnerships , Lauren Rosenberg DOI: 10.37514/PER-B.2020.1053.2.06

Part 2. Leveraging Our Traditions

Chapter 7. Literacy Tours and Material Matters: Principles for Studying the Literate Lives of Older Adults , Lauren Marshall Bowen DOI: 10.37514/PER-B.2020.1053.2.07

Chapter 8. Toward an Understanding of the Multidirectional Nature of Family Literacy Development , Yvonne Lee DOI: 10.37514/PER-B.2020.1053.2.08

Chapter 9. Writing as a Matter of Life and Death: Writing Through the Transition Between Employment and Retirement in the USA , James T. Zebroski DOI: 10.37514/PER-B.2020.1053.2.09

Chapter 10. The Relations Among the Development of Written Language and Executive Functions for Children in Elementary School , Lara-Jeane C. Costa, Jeffrey A. Greene, and Stephen R. Hooper DOI: 10.37514/PER-B.2020.1053.2.10

Chapter 11. Interpreting and Explaining Data Representations: A Comparison Across Grades 1-7 , Diana J. Arya, Anthony Clairmont, and Sarah Hirsch DOI: 10.37514/PER-B.2020.1053.2.11

Chapter 12. Informing Inquiry into Writing Across the Lifespan from Perspectives on Students with Learning Disabilities or Autism Spectrum Disorder , Apryl L. Poch, Matthew C. Zajic, and Steve Graham DOI: 10.37514/PER-B.2020.1053.2.12

Chapter 13. Visualizing Writing Development: Mapping Writers’ Conceptions of Writing through the Lifespan , Erin Workman DOI: 10.37514/PER-B.2020.1053.2.13

Chapter 14. Addressing the Futurity of Literate Action: Tracing the Enduring Consequences of Acting with Inscriptions throughout the Lifeworld , Kevin Roozen DOI: 10.37514/PER-B.2020.1053.2.14

Conclusion as Prolegomena: From Points of Convergence to Murmurations across Sites, Researchers, and Methods , Ryan J. Dippre and Talinn Phillips DOI: 10.37514/PER-B.2020.1053.3.1

Epilogue , Deborah Brandt DOI: 10.37514/PER-B.2020.1053.3.2

Contributors

About the Editors

Ryan J. Dippre is Assistant Professor of English and the Director of College Composition at the University of Maine. He earned his Ph.D. from University of California, Santa Barbara in 2015. He has published in Literacy in Composition Studies and English Journal , among other places. His book, Talk, Tools, and Texts: A Logic-in-Use for Studying Lifespan Literate Action Development , is available at the WAC Clearinghouse / University Press of Colorado. He serves as the co-chair of the Writing through the Lifespan Collaboration, a group of international scholars interested in developing a multi-site, multi-method, multi-generational study of writing through the lifespan. His research interests include lifespan writing research and writing program administration.

Talinn Phillips is Associate Professor of English at Ohio University where she also directs the Graduate Writing and Research Center. In addition to the lifespan, her research has investigated international graduate student writing development, liminal writing program administrators, and various intersections of graduate students and writing center support. She is co-editor of Supporting Graduate Student Writers: Research, Curriculum, and Program Design (University of Michigan Press, 2016), co-author of Teaching with a Global Perspective: Practical Strategies from Course Design to Assessment (Routledge, 2018), and co-creator of the tutor training film, Becoming an Ally: Tutoring Multilingual Writers (2017). She is a co-founder of the Writing Through the Lifespan Collaboration.

Publication Information: Dippre, Ryan J., & Talinn Phillips (Eds.). (2020). Approaches to Lifespan Writing Research: Generating an Actionable Coherence . The WAC Clearinghouse; University Press of Colorado. https://doi.org/10.37514/PER-B.2020.1053 Web Publication Date: August 15, 2020 Print Publication Date: January 2021

ISBN: 978-1-64215-105-3 (PDF) | 978-1-64215-106-0 (ePub) | 978-1-64642-145-9 (pbk.) DOI: 10.37514/PER-B.2020.1053

Contact Information: Ryan J. Dippre: [email protected] Talinn Phillips: [email protected]

Review Title Date

Perspectives on Writing

Series Editors: Rich Rice, Texas Tech University; Heather MacNeill Falconer, Curry College; and J. Michael Rifenburg, University of North Georgia

Copyright © 2020 Ryan J. Dippre, Talinn Phillips and the authors of individual parts of this book. This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 International License. 282 pages, with notes, illustrations, and bibliographies. This book is available in print from University Press of Colorado as well as from any online or brick-and-mortar bookstore. Available in digital format for no charge on this page at the WAC Clearinghouse. You may view this book. You may print personal copies of this book. You may link to this page. You may not reproduce this book on another website.

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IELTS Writing Task 2/ Essay Topics with sample answer.

Ielts writing task 2 sample 255 - in the developed world, average life expectancy is increasing, ielts writing task 2/ ielts essay:, in the developed world, average life expectancy is increasing. what problems will this cause for individuals and society suggest some measures that could be taken to reduce the impact of ageing populations..

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75 Lifespan Development Essay Topics to Write about
The physical aspect of lifespan development is one of the important ones: it is related to the growth and development of the body and changes in the body and the brain. The Lifespan Development Perspective. In addition, the impact of the interaction between genes and the environment on the process of human development is also discussed.
IELTS Model Essay: Increased Life Expectancy
In this post, I'm going to write an IELTS Writing Task 2 model essay in response to this question about increased life expectancy from Test 2 of The Official Cambridge Guide To IELTS:. You should spend about 40 minutes on this task. Write about the following topic: One of the consequences of improved medical care is that people are living longer and life expectancy is increasing.
Life-Span Development: From Birth to Death
Life-Span Development: From Birth to Death. One's personal, physical and emotional development is cumulative. The nature of experiences and development during each state of the life-span will have an impact on how subsequent stages are experienced for better or for worse. The following is a concise overview of the changes and normative ...
Intro to Lifespan Development
Piaget's theory of cognitive development. A theory about how people come to gradually acquire, construct, and use knowledge and information. It describes cognitive development through four distinct stages: sensorimotor, preoperational, concrete, and formal. Discontinuous; there are distinct stages of development.
The Lifespan Perspective of Development
Lifespan development is a progressive process of development in a human being involving an increase in age, which begins at conception and ends with death (Sugarman, 2000, p. 56). In addition, lifespan development can be divided into four levels depicting advanced functionality and character changes as an individual moves from one level to ...
Ch 3: Lifespan Development
Physical development involves growth and changes in the body and brain, the senses, motor skills, and health and wellness. Cognitive development involves learning, attention, memory, language, thinking, reasoning, and creativity. Psychosocial development involves emotions, personality, and social relationships.
1.1: Introduction to Life Span, Growth and Development
This page titled 1.1: Introduction to Life Span, Growth and Development is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by Laura Overstreet via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request. This course is commonly referred to ...
Chapter 1: Introduction to Life Span Development
Learning Objectives: At the end of this chapter, you should be able to: Explain the study of human development. Define physical, cognitive, and psychosocial development. Differentiate periods of human development. Analyze your location in the lifespan. Critique stage theory models of human development.
Life Span Development Essays (Examples)
Donald E. Super The Life-Span theory of career development, developed by D.E. Super in 1953, is a highly useful tool for understanding career choice and development across the lifespan. The theory sees career development as a series of steps that begin with the development of self-concept, and end with retirement, although these steps can sometimes be juxtaposed during the life cycle.
Life-Span Perspective of Human Development: Essay
Louw and Louw (2019) write that a perspective that can help us understand the importance of taking a holistic approach to development is the life-span perspective. According to the life-span perspective, development is lifelong, multidirectional, multidimensional, plastic, contextual, and multidisciplinary. Save your time!
Life Span Development, Essay Example
Life Span Development, Essay Example. HIRE A WRITER! You are free to use it as an inspiration or a source for your own work. It was the philosopher Plato that stated " People are like soil. They can either nourish you and help you grow as a person or they can stunt your growth and make you wilt and die". This actually starts off with your ...
Task 1 Sample essay about life expectancy
Home » Academic writing task 1 sample essays & answer » IELTS academic task 1 sample essay 15: average life expectancy per country. In the graph above, average life expectancy (in years) is compared for six countries: Monaco, the United States, the Philippines, Laos, Rwanda, and South Africa. The graph organizes the country from longest life ...
The Lifespan Mosaic: The Portrait of Human Development Free Essay Example
Lifespan development, spanning from conception to the inevitable embrace of death, becomes a canvas for unraveling the characteristics shaping our journey, all intricately woven into the fabric of culture and circumstance. Human existence is a tapestry woven with the threads of continuous change. Understanding the intricacies of this perpetual ...
IELTS Writing Task 2: 'ageing population' topic
In the developed world, average life expectancy is increasing. What problems will this cause for individuals and society? Suggest some measures that could be taken to reduce the impact of ageing populations. Some advice: - Write 4 paragraphs: introduction, problems, solutions, conclusion. - You don't need to separate ideas about individuals and ideas about society.
Lifespan development Essays
Our development occurs at ages stages where we develop from infancy till death. This essay will contain my life story to display the domains in 5 age stages in my lifespan development. The domains I will be exploring is in this essay is physical, emotional, cognitive, social, cultural and moral domain.
Essays About Life: Top 5 Examples Plus 7 Prompts
Each of us has meaning, and we bring it to life. It is a waste to be asking the question when you are the answer," for example. This quote pertains to his belief that an individual is responsible for giving life meaning. 2. My Life Purpose. For this prompt, share with your readers your current purpose in life.
Approaches to Lifespan Writing Research: Generating an Actionable
This methodological and theoretical flexibility reflects the challenges inherent in studying lifespan writing—in particular, the need to develop an integrated framework that enables the "translation" of research findings for use by other lifespan writing researchers. Approaches to Lifespan Writing Research begins that process. Table of ...
Reflection on Lifespan Development Free Essay Example
Views. 4318. Abstract. The purpose of this paper is to present a comparison of my knowledge and understanding of lifespan development at the outset of course PSY 7210 Lifespan Development and at the courses' end. In this paper I will explore lifespan development by identifying and discussing the stages of development, theoretical perspectives ...
IELTS Writing Task 2/ Essay Topics with sample answer.
Sample Answer 1: In the modern world, the expected life of an individual is gradually increasing. Many people think that the trend is a positive development, but it has caused some problems for many countries. The following essay will discuss the effect of this positive trend, and some of the ways that could be considered in addressing the problem.

IELTS Model Essay: Increased Life Expectancy

Step 1: Analyse The Question

Step 2: Decide My Position (What Do I Think?)

Step 3: Generate My Ideas (Why Do I Think This?)

Step 4: Develop My Ideas

My Model Essay

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Privacy Overview

Intro to Lifespan Development

Think It Over

What you’ll learn to do: define human development and identify the stages of human development

Learning Outcomes

Defining Human Development

Physical Domain

Cognitive Domain

Psychosocial Domain

Who Studies Human Development and Why?

What you’ll learn to do: describe the theories of lifespan development

Learning outcomes

Understanding Theories

Is Development Continuous or Discontinuous?

Is There One Course of Development or Many?

How Do Nature and Nurture Influence Development?

History of Developmental Psychology

John B. Watson

Sigmund Freud

Jean Piaget

Bronfenbrenner’s Ecological Systems Theory

Comparing and Evaluating Lifespan Theories

Periods of Human Development

What you’ll learn to do: explain the lifespan perspective

The Lifespan Perspective

Development is lifelong

Development is multidimensional

Development is multidirectional

Development is plastic

Development is contextual

Other Contextual Influences on Development: Cohort, Socioeconomic Status, and Culture

Development is Multidisciplinary

Additional Supplemental Resources

How to Age Gracefully

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The Lifespan Development Perspective Essay

Theories of Lifespan Development

The Interaction of Genes and the Environment in Lifespan Development

Ch 3: Lifespan Development

Theories of Development

Learning Objectives

What Is Lifespan Development?

Connect the Concepts: Research Methods in Developmental Psychology

Link to Learning

Is There One Course of Development or Many?

How Do Nature and Nurture Influence Development?

Dig Deeper: The Achievement Gap: How Does Socioeconomic Status Affect Development?

Think It Over

Lifespan Theories

Psychosexual Theory of Development

Cognitive Theory of Development

Beyond Formal Operational Thought

Theory of Moral Development

Development in Childhood

Prenatal Development

Germinal Stage (Weeks 1–2)

Embryonic Stage (Weeks 3–8)

Fetal Stage (Weeks 9–40)

Prenatal Influences

Dig Deeper: Should Women Who Use Drugs During Pregnancy Be Arrested and Jailed?

Infancy through Childhood

Physical Development

Cognitive Development

Everyday Connection: The Importance of Play and Recess

Self-Concept

Development in Adolescence and Adulthood

Adolescence

Psychosocial Development

Emerging Adulthood

Putting It Together: Lifespan Development

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1.1: Introduction to Life Span, Growth and Development