case study for developmental psychology

Developmental Psychology 101: Theories, Stages, & Research

You can imagine how vast this field of psychology is if it has to cover the whole of life, from birth through death.

Just like any other area of psychology, it has created exciting debates and given rise to fascinating case studies.

In recent years, developmental psychology has shifted to incorporate positive psychology paradigms to create a holistic lifespan approach. As an example, the knowledge gained from positive psychology can enhance the development of children in education.

In this article, you will learn a lot about different aspects of developmental psychology, including how it first emerged in history and famous theories and models.

Before you continue, we thought you might like to download our three Positive Psychology Exercises for free . These science-based exercises explore fundamental aspects of positive psychology, including strengths, values, and self-compassion, and will give you the tools to enhance the wellbeing of your clients, students, or employees.

This Article Contains:

What is developmental psychology, 4 popular theories, stages, & models, 2 questions and research topics, fascinating case studies & research findings, a look at positive developmental psychology, applying developmental psychology in education, resources from positivepsychology.com, a take-home message.

Human beings change drastically over our lifetime.

The American Psychological Association (2020) defines developmental psychology as the study of physical, mental, and behavioral changes, from conception through old age.

Developmental psychology investigates biological, genetic, neurological, psychosocial, cultural, and environmental factors of human growth (Burman, 2017).

Over the years, developmental psychology has been influenced by numerous theories and models in varied branches of psychology (Burman, 2017).

History of developmental psychology

Developmental psychology first appeared as an area of study in the late 19th century (Baltes, Lindenberger, & Staudinger, 2007). Developmental psychology focused initially on child and adolescent development, and was concerned about children’s minds and learning (Hall, 1883).

There are several key figures in developmental psychology. In 1877, the famous evolutionary biologist Charles Darwin undertook the first study of developmental psychology on innate communication forms. Not long after, physiologist William Preyer (1888) published a book on the abilities of an infant.

The 1900s saw many significant people dominating the developmental psychology field with their detailed theories of development: Sigmund Freud (1923, 1961), Jean Piaget (1928), Erik Erikson (1959), Lev Vygotsky (1978), John Bowlby (1958), and Albert Bandura (1977).

By the 1920s, the scope of developmental psychology had begun to include adult development and the aging process (Thompson, 2016).

In more recent years, it has broadened further to include prenatal development (Brandon et al., 2009). Developmental psychology is now understood to encompass the complete lifespan (Baltes et al., 2007).

Each of these models has contributed to the understanding of the process of human development and growth.

Furthermore, each theory and model focuses on different aspects of development: social, emotional, psychosexual, behavioral, attachment, social learning, and many more.

Here are some of the most popular models of development that have heavily contributed to the field of developmental psychology.

1. Bowlby’s attachment styles

The seminal work of psychologist John Bowlby (1958) showcased his interest in children’s social development. Bowlby (1969, 1973, 1980) developed the most famous theory of social development, known as attachment theory .

Bowlby (1969) hypothesized that the need to form attachments is innate, embedded in all humans for survival and essential for children’s development. This instinctive bond helps ensure that children are cared for by their parent or caregiver (Bowlby, 1969, 1973, 1980).

Bowlby’s original attachment work was developed further by one of his students, Mary Ainsworth. She proposed several attachment styles between the child and the caregiver (Ainsworth & Bell, 1970).

This theory clearly illustrates the importance of attachment styles to a child’s future development. Consistent and stable caregiving results in a secure attachment style (Ainsworth, Blehar, Waters, & Wall, 1978). In contrast, unstable and insecure caregiving results in several negative attachment styles: ambivalent, avoidant, or disorganized (Ainsworth & Bell, 1970; Main & Solomon, 1986).

Bowlby’s theory does not consider peer group influence or how it can shape children’s personality and development (Harris, 1998).

2. Piaget’s stage theory

Jean Piaget was a French psychologist highly interested in child development. He was interested in children’s thinking and how they acquire, construct, and use their knowledge (Piaget, 1951).

Piaget’s (1951) four-stage theory of cognitive development sequences a child’s intellectual development. According to this theory, all children move through these four stages of development in the same order (Simatwa, 2010).

The sensorimotor stage is from birth to two years old. Behaviors are triggered by sensory stimuli and limited to simple motor responses. If an object is removed from the child’s vision, they think it no longer exists (Piaget, 1936).

The pre-operational stage occurs between two and six years old. The child learns language but cannot mentally manipulate information or understand concrete logic (Wadsworth, 1971).

The concrete operational stage takes place from 7 to 11 years old. Children begin to think more logically about factual events. Abstract or hypothetical concepts are still difficult to understand in this stage (Wadsworth, 1971).

In the formal operational stage from 12 years to adulthood, abstract thought and skills arise (Piaget, 1936).

Piaget did not consider other factors that might affect these stages or a child’s progress through them. Biological maturation and interaction with the environment can determine the rate of cognitive development in children (Papalia & Feldman, 2011). Individual differences can also dictate a child’s progress (Berger, 2014).

3. Freud’s psychosexual development theory

One of the most influential developmental theories, which encompassed psychosexual stages of development, was developed by Austrian psychiatrist Sigmund Freud (Fisher & Greenberg, 1996).

Freud concluded that childhood experiences and unconscious desires influence behavior after witnessing his female patients experiencing physical symptoms and distress with no physical cause (Breuer & Freud, 1957).

According to Freud’s psychosexual theory, child development occurs in a series of stages, each focused on different pleasure areas of the body. During each stage, the child encounters conflicts, which play a significant role in development (Silverman, 2017).

Freud’s theory of psychosexual development includes the oral, anal, phallic, latent, and genital stages. His theory suggests that the energy of the libido is focused on these different erogenous zones at each specific stage (Silverman, 2017).

Freud concluded that the successful completion of each stage leads to healthy adult development. He also suggested that a failure to progress through a stage causes fixation and developmental difficulties, such as nail biting (oral fixation) or obsessive tidiness (anal fixation; Silverman, 2017).

Freud considered personality to be formed in childhood as a child passes through these stages. Criticisms of Freud’s theory of psychosexual development include its failure to consider that personality can change and grow over an entire lifetime. Freud believed that early experiences played the most significant role in shaping development (Silverman, 2017).

4. Bandura’s social learning theory

American psychologist Albert Bandura proposed the social learning theory (Bandura, Ross, & Ross, 1961). Bandura did not believe that classical or operant conditioning was enough to explain learned behavior because some behaviors of children are never reinforced (Bandura, 1986). He believed that children observe, imitate, and model the behaviors and reactions of others (Bandura, 1977).

Bandura suggested that observation is critical in learning. Further, the observation does not have to be of a live actor, such as in the Bobo doll experiment (Bandura, 1986). Bandura et al. (1961) considered that learning and modeling can also occur from listening to verbal instructions on behavior performance.

Bandura’s (1977) social theory posits that both environmental and cognitive factors interact to influence development.

Bandura’s developmental theory has been criticized for not considering biological factors or children’s autonomic nervous system responses (Kevin, 1995).

Overview of theories of development – Khan Academy

Developmental psychology has given rise to many debatable questions and research topics. Here are two of the most commonly discussed.

1. Nature vs nurture debate

One of the oldest debates in the field of developmental psychology has been between nature and nurture (Levitt, 2013).

Is human development a result of hereditary factors (genes), or is it influenced by the environment (school, family, relationships, peers, community, culture)?

The polarized position of developmental psychologists of the past has now changed. The nature/nurture question now concerns the relationship between the innateness of an attribute and the environmental effects on that attribute (Nesterak, 2015).

The field of epigenetics  describes how behavioral and environmental influences affect the expression of genes (Kubota, Miyake, & Hirasawa, 2012).

Many severe mental health disorders have a hereditary component. Yet, the environment and behavior, such as improved diet, reduced stress, physical activity, and a positive mindset, can determine whether this health condition is ever expressed (Śmigielski, Jagannath, Rössler, Walitza, & Grünblatt, 2020).

When considering classic models of developmental psychology, such as Piaget’s schema theory and Freud’s psychosexual theory, you’ll see that they both perceive development to be set in stone and unchangeable by the environment.

Contemporary developmental psychology theories take a different approach. They stress the importance of multiple levels of organization over the course of human development (Lomas, Hefferon, & Ivtzan, 2016).

2. Theory of mind

Theory of mind allows us to understand that others have different intentions, beliefs, desires, perceptions, behaviors, and emotions (American Psychological Association, 2020).

It was first identified by research by Premack and Woodruff (1978) and considered to be a natural developmental stage of progression for all children. Starting around the ages of four or five, children begin to think about the thoughts and feelings of others. This shows an emergence of the theory of mind (Wellman & Liu, 2004).

However, the ability of all individuals to achieve and maintain this critical skill at the same level is debatable.

Children diagnosed with autism exhibit a deficit in the theory of mind (Baron-Cohen, Leslie, & Frith, 1985).

Individuals with depression (psychotic and non-psychotic) are significantly impaired in theory of mind tasks (Wang, Wang, Chen, Zhu, & Wang, 2008).

People with social anxiety disorder have also been found to show less accuracy in decoding the mental states of others (Washburn, Wilson, Roes, Rnic, & Harkness, 2016).

Further research has shown that the theory of mind changes with aging. This suggests a developmental lifespan process for this concept (Meinhardt-Injac, Daum, & Meinhardt, 2020).

1. Little Albert

The small child who was the focus of the experiments of behavioral psychologists Watson and Rayner (1920) was referred to as ‘Little Albert.’ These experiments were essential landmarks in developmental psychology and showed how an emotionally stable child can be conditioned to develop a phobia.

Albert was exposed to several neutral stimuli including cotton wool, masks, a white rat, rabbit, monkey, and dog. Albert showed no initial fear to these stimuli.

When a loud noise was coupled with the initially neutral stimulus, Albert became very distressed and developed a phobia of the object, which extended to any similar object as well.

This experiment highlights the importance of environmental factors in the development of behaviors in children.

2. David Reimer

At the age of eight months, David Reimer lost his penis in a circumcision operation that went wrong. His worried parents consulted a psychologist, who advised them to raise David as a girl.

David’s young age meant he knew nothing about this. He went through the process of hormonal treatment and gender reassignment. At the age of 14, David found out the truth and wanted to reverse the gender reassignment process to become a boy again. He had always felt like a boy until this time, even though he was socialized and brought up as a girl (Colapinto, 2006).

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Contemporary theories of developmental psychology often encompass a holistic approach and a more positive approach to development.

Positive psychology has intersected with developmental disciplines in areas such as parenting, education, youth, and aging (Lomas et al., 2016).

These paradigms can all be grouped together under the umbrella of positive developmental psychology. This fresh approach to development focuses on the wellbeing aspects of development, while systematically bringing them together (Lomas, et al., 2016).

• Positive parenting is the approach to children’s wellbeing by focusing on the role of parents and caregivers (Latham, 1994).
• Positive education looks at flourishing in the context of school (Seligman, Ernst, Gillham, Reivich, & Linkins, 2009).
• Positive youth development is the productive and constructive focus on adolescence and early adulthood to enhance young people’s strengths and promote positive outcomes (Larson, 2000).
• Positive aging , also known as healthy aging, focuses on the positivity of aging as a healthy, normal stage of life (Vaillant, 2004).

Much of the empirical and theoretical work connected to positive developmental psychology has been going on for years, even before the emergence of positive psychology itself (Lomas et al., 2016).

We recommend this related article Applying Positive Psychology in Schools & Education: Your Ultimate Guide for further reading.

In the classroom, developmental psychology considers children’s psychological, emotional, and intellectual characteristics according to their developmental stage.

A report on the top 20 principles of psychology in the classroom, from pre-kindergarten to high school, was published by the American Psychological Association in 2015. The report also advised how teachers can respond to these principles in the classroom setting.

The top 5 principles and teacher responses are outlined in the table below.

There are many valuable resources to help you foster positive development no matter whether you’re working with young children, teenagers, or adults.

To help get you started, check out the following free resources from around our blog.

• Adopt A Growth Mindset This exercise helps clients recognize instances of fixed mindset in their thinking and actions and replace them with thoughts and behaviors more supportive of a growth mindset.
• Childhood Frustrations This worksheet provides a space for clients to document key challenges experienced during childhood, together with their emotional and behavioral responses.
• What I Want to Be This worksheet helps children identify behaviors and emotions they would like to display and select an opportunity in the future to behave in this ideal way.
• 17 Positive Psychology Exercises If you’re looking for more science-based ways to help others enhance their wellbeing, this signature collection contains 17 validated positive psychology tools for practitioners. Use them to help others flourish and thrive.
• Developmental Psychology Courses If you are interested in a career in Developmental Psychology , we suggest 15 of the best courses in this article.

17 Top-Rated Positive Psychology Exercises for Practitioners

Expand your arsenal and impact with these 17 Positive Psychology Exercises [PDF] , scientifically designed to promote human flourishing, meaning, and wellbeing.

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Earlier developmental psychology models and theories were focused on specific areas, such as attachment, psychosexual, cognitive, and social learning. Although informative, they did not take in differing perspectives and were fixed paradigms.

We’ve now come to understand that development is not fixed. Individual differences take place in development, and the factors that can affect development are many. It is ever changing throughout life.

The modern-day approach to developmental psychology includes sub-fields of positive psychology. It brings these differing disciplines together to form an overarching positive developmental psychology paradigm.

Developmental psychology has helped us gain a considerable understanding of children’s motivations, social and emotional contexts, and their strengths and weaknesses.

This knowledge is essential for educators to create rich learning environments for students to help them develop positively and ultimately flourish to their full potential.

We hope you enjoyed reading this article. Don’t forget to download our three Positive Psychology Exercises for free .

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Jean Piaget is Swiss, not French. Switzerland is divided into regions by language. One of them is a French language region, including Geneva, Vaud, Neuchatel, etc. Jean Piaget was born in Neuchatel and lived and died in Geneva. Please make the necessary correction.

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Case Studies in Lifespan Development

• Stephanie M. Wright - Georgia Gwinnett College Psychology Department
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Case Studies in Lifespan Development offers students a comprehensive view into life’s key developmental stages through unique, diverse, and moving cases. Author Stephanie M. Wright presents a series of 12 case studies shaped by the contributions of real students—including their observations, concerns, and moments of triumph—to build immersive examples that readers can relate to and enjoy.   INSTRUCTORS: Bundle Case Studies in Lifespan Development with one of the best-selling core texts below for only $5 more! SAGE coursepacks LMS resources accompanying these texts allow you to track student understanding of the entire human lifespan with auto-graded assessments and open-ended discussion questions.

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• Cases develop from conception through end-of-life to encourage analysis of early life experiences as precursors to later life development.         
• Comprehensive assessment requires students to create new case outcomes from existing theory and information.         
• Specific learning objectives for each domain and period of development are presented at the beginning of each developmental moment and are mapped to primary text material.

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Case Study Research Method in Psychology

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Case studies are in-depth investigations of a person, group, event, or community. Typically, data is gathered from various sources using several methods (e.g., observations & interviews).

The case study research method originated in clinical medicine (the case history, i.e., the patient’s personal history). In psychology, case studies are often confined to the study of a particular individual.

The information is mainly biographical and relates to events in the individual’s past (i.e., retrospective), as well as to significant events that are currently occurring in his or her everyday life.

The case study is not a research method, but researchers select methods of data collection and analysis that will generate material suitable for case studies.

Freud (1909a, 1909b) conducted very detailed investigations into the private lives of his patients in an attempt to both understand and help them overcome their illnesses.

This makes it clear that the case study is a method that should only be used by a psychologist, therapist, or psychiatrist, i.e., someone with a professional qualification.

There is an ethical issue of competence. Only someone qualified to diagnose and treat a person can conduct a formal case study relating to atypical (i.e., abnormal) behavior or atypical development.

 Famous Case Studies

• Anna O – One of the most famous case studies, documenting psychoanalyst Josef Breuer’s treatment of “Anna O” (real name Bertha Pappenheim) for hysteria in the late 1800s using early psychoanalytic theory.
• Little Hans – A child psychoanalysis case study published by Sigmund Freud in 1909 analyzing his five-year-old patient Herbert Graf’s house phobia as related to the Oedipus complex.
• Bruce/Brenda – Gender identity case of the boy (Bruce) whose botched circumcision led psychologist John Money to advise gender reassignment and raise him as a girl (Brenda) in the 1960s.
• Genie Wiley – Linguistics/psychological development case of the victim of extreme isolation abuse who was studied in 1970s California for effects of early language deprivation on acquiring speech later in life.
• Phineas Gage – One of the most famous neuropsychology case studies analyzes personality changes in railroad worker Phineas Gage after an 1848 brain injury involving a tamping iron piercing his skull.

Clinical Case Studies

• Studying the effectiveness of psychotherapy approaches with an individual patient
• Assessing and treating mental illnesses like depression, anxiety disorders, PTSD
• Neuropsychological cases investigating brain injuries or disorders

Child Psychology Case Studies

• Studying psychological development from birth through adolescence
• Cases of learning disabilities, autism spectrum disorders, ADHD
• Effects of trauma, abuse, deprivation on development

Types of Case Studies

• Explanatory case studies : Used to explore causation in order to find underlying principles. Helpful for doing qualitative analysis to explain presumed causal links.
• Exploratory case studies : Used to explore situations where an intervention being evaluated has no clear set of outcomes. It helps define questions and hypotheses for future research.
• Descriptive case studies : Describe an intervention or phenomenon and the real-life context in which it occurred. It is helpful for illustrating certain topics within an evaluation.
• Multiple-case studies : Used to explore differences between cases and replicate findings across cases. Helpful for comparing and contrasting specific cases.
• Intrinsic : Used to gain a better understanding of a particular case. Helpful for capturing the complexity of a single case.
• Collective : Used to explore a general phenomenon using multiple case studies. Helpful for jointly studying a group of cases in order to inquire into the phenomenon.

Where Do You Find Data for a Case Study?

There are several places to find data for a case study. The key is to gather data from multiple sources to get a complete picture of the case and corroborate facts or findings through triangulation of evidence. Most of this information is likely qualitative (i.e., verbal description rather than measurement), but the psychologist might also collect numerical data.

1. Primary sources

• Interviews – Interviewing key people related to the case to get their perspectives and insights. The interview is an extremely effective procedure for obtaining information about an individual, and it may be used to collect comments from the person’s friends, parents, employer, workmates, and others who have a good knowledge of the person, as well as to obtain facts from the person him or herself.
• Observations – Observing behaviors, interactions, processes, etc., related to the case as they unfold in real-time.
• Documents & Records – Reviewing private documents, diaries, public records, correspondence, meeting minutes, etc., relevant to the case.

2. Secondary sources

• News/Media – News coverage of events related to the case study.
• Academic articles – Journal articles, dissertations etc. that discuss the case.
• Government reports – Official data and records related to the case context.
• Books/films – Books, documentaries or films discussing the case.

3. Archival records

Searching historical archives, museum collections and databases to find relevant documents, visual/audio records related to the case history and context.

Public archives like newspapers, organizational records, photographic collections could all include potentially relevant pieces of information to shed light on attitudes, cultural perspectives, common practices and historical contexts related to psychology.

4. Organizational records

Organizational records offer the advantage of often having large datasets collected over time that can reveal or confirm psychological insights.

Of course, privacy and ethical concerns regarding confidential data must be navigated carefully.

However, with proper protocols, organizational records can provide invaluable context and empirical depth to qualitative case studies exploring the intersection of psychology and organizations.

• Organizational/industrial psychology research : Organizational records like employee surveys, turnover/retention data, policies, incident reports etc. may provide insight into topics like job satisfaction, workplace culture and dynamics, leadership issues, employee behaviors etc.
• Clinical psychology : Therapists/hospitals may grant access to anonymized medical records to study aspects like assessments, diagnoses, treatment plans etc. This could shed light on clinical practices.
• School psychology : Studies could utilize anonymized student records like test scores, grades, disciplinary issues, and counseling referrals to study child development, learning barriers, effectiveness of support programs, and more.

How do I Write a Case Study in Psychology?

Follow specified case study guidelines provided by a journal or your psychology tutor. General components of clinical case studies include: background, symptoms, assessments, diagnosis, treatment, and outcomes. Interpreting the information means the researcher decides what to include or leave out. A good case study should always clarify which information is the factual description and which is an inference or the researcher’s opinion.

1. Introduction

• Provide background on the case context and why it is of interest, presenting background information like demographics, relevant history, and presenting problem.
• Compare briefly to similar published cases if applicable. Clearly state the focus/importance of the case.

2. Case Presentation

• Describe the presenting problem in detail, including symptoms, duration,and impact on daily life.
• Include client demographics like age and gender, information about social relationships, and mental health history.
• Describe all physical, emotional, and/or sensory symptoms reported by the client.
• Use patient quotes to describe the initial complaint verbatim. Follow with full-sentence summaries of relevant history details gathered, including key components that led to a working diagnosis.
• Summarize clinical exam results, namely orthopedic/neurological tests, imaging, lab tests, etc. Note actual results rather than subjective conclusions. Provide images if clearly reproducible/anonymized.
• Clearly state the working diagnosis or clinical impression before transitioning to management.

3. Management and Outcome

• Indicate the total duration of care and number of treatments given over what timeframe. Use specific names/descriptions for any therapies/interventions applied.
• Present the results of the intervention,including any quantitative or qualitative data collected.
• For outcomes, utilize visual analog scales for pain, medication usage logs, etc., if possible. Include patient self-reports of improvement/worsening of symptoms. Note the reason for discharge/end of care.

4. Discussion

• Analyze the case, exploring contributing factors, limitations of the study, and connections to existing research.
• Analyze the effectiveness of the intervention,considering factors like participant adherence, limitations of the study, and potential alternative explanations for the results.
• Identify any questions raised in the case analysis and relate insights to established theories and current research if applicable. Avoid definitive claims about physiological explanations.
• Offer clinical implications, and suggest future research directions.

5. Additional Items

• Thank specific assistants for writing support only. No patient acknowledgments.
• References should directly support any key claims or quotes included.
• Use tables/figures/images only if substantially informative. Include permissions and legends/explanatory notes.
• Provides detailed (rich qualitative) information.
• Provides insight for further research.
• Permitting investigation of otherwise impractical (or unethical) situations.

Case studies allow a researcher to investigate a topic in far more detail than might be possible if they were trying to deal with a large number of research participants (nomothetic approach) with the aim of ‘averaging’.

Because of their in-depth, multi-sided approach, case studies often shed light on aspects of human thinking and behavior that would be unethical or impractical to study in other ways.

Research that only looks into the measurable aspects of human behavior is not likely to give us insights into the subjective dimension of experience, which is important to psychoanalytic and humanistic psychologists.

Case studies are often used in exploratory research. They can help us generate new ideas (that might be tested by other methods). They are an important way of illustrating theories and can help show how different aspects of a person’s life are related to each other.

The method is, therefore, important for psychologists who adopt a holistic point of view (i.e., humanistic psychologists ).

Limitations

• Lacking scientific rigor and providing little basis for generalization of results to the wider population.
• Researchers’ own subjective feelings may influence the case study (researcher bias).
• Difficult to replicate.
• Time-consuming and expensive.
• The volume of data, together with the time restrictions in place, impacted the depth of analysis that was possible within the available resources.

Because a case study deals with only one person/event/group, we can never be sure if the case study investigated is representative of the wider body of “similar” instances. This means the conclusions drawn from a particular case may not be transferable to other settings.

Because case studies are based on the analysis of qualitative (i.e., descriptive) data , a lot depends on the psychologist’s interpretation of the information she has acquired.

This means that there is a lot of scope for Anna O , and it could be that the subjective opinions of the psychologist intrude in the assessment of what the data means.

For example, Freud has been criticized for producing case studies in which the information was sometimes distorted to fit particular behavioral theories (e.g., Little Hans ).

This is also true of Money’s interpretation of the Bruce/Brenda case study (Diamond, 1997) when he ignored evidence that went against his theory.

Breuer, J., & Freud, S. (1895).  Studies on hysteria . Standard Edition 2: London.

Curtiss, S. (1981). Genie: The case of a modern wild child .

Diamond, M., & Sigmundson, K. (1997). Sex Reassignment at Birth: Long-term Review and Clinical Implications. Archives of Pediatrics & Adolescent Medicine , 151(3), 298-304

Freud, S. (1909a). Analysis of a phobia of a five year old boy. In The Pelican Freud Library (1977), Vol 8, Case Histories 1, pages 169-306

Freud, S. (1909b). Bemerkungen über einen Fall von Zwangsneurose (Der “Rattenmann”). Jb. psychoanal. psychopathol. Forsch ., I, p. 357-421; GW, VII, p. 379-463; Notes upon a case of obsessional neurosis, SE , 10: 151-318.

Harlow J. M. (1848). Passage of an iron rod through the head.  Boston Medical and Surgical Journal, 39 , 389–393.

Harlow, J. M. (1868).  Recovery from the Passage of an Iron Bar through the Head .  Publications of the Massachusetts Medical Society. 2  (3), 327-347.

Money, J., & Ehrhardt, A. A. (1972).  Man & Woman, Boy & Girl : The Differentiation and Dimorphism of Gender Identity from Conception to Maturity. Baltimore, Maryland: Johns Hopkins University Press.

Money, J., & Tucker, P. (1975). Sexual signatures: On being a man or a woman.

Further Information

• Case Study Approach
• Case Study Method
• Enhancing the Quality of Case Studies in Health Services Research
• “We do things together” A case study of “couplehood” in dementia
• Using mixed methods for evaluating an integrative approach to cancer care: a case study

Related Articles

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Qualitative Data Coding

What Is a Focus Group?

Cross-Cultural Research Methodology In Psychology

What Is Internal Validity In Research?

Research Methodology , Statistics

What Is Face Validity In Research? Importance & How To Measure

Criterion Validity: Definition & Examples

Developmental Psychology Studies: 10 Examples

Discover ten classic developmental psychology experiments that study how children’s self, memory, language, learning and more emerge.

Once upon a time, although it seems barely credible to us now, we were all children.

We gurgled, we cried, we laughed, we explored, we fell down, and we had very little idea about the journey on which we had just embarked.

Barring mishap, over the first few years of our lives we developed memory, language, self-concept, cognitive, social and emotional abilities.

We took our first steps towards our future selves.

Child psychology — or, more broadly, developmental psychology — is not just the study of children, it is the study of you and me and how we came to be this way.

Just as discovering your history can teach you about the future, so developmental psychology shows us what we once were and even what we will become.

Here are 10 classic developmental psychology studies that have illuminated crucial areas of childhood development.

Each one is a piece in the jigsaw puzzle that is ourselves, and each one reminds us, through examining just one piece, how aspects of experience we now take for granted were once so complex.

Click the links for a more extensive description of each developmental psychology experiment.

1. Infant memory develops very early on

Some argue it’s impossible for us to remember anything much from before around two to four years of age.

Others think our memories can go way back – perhaps even to before birth.

The question of infant memory is thorny because it’s hard to test whether adults’ earliest memories are real or imagined.

What psychologists have done, though, is examine the emergence of memory in our first few years with a series of now classic experiments in developmental psychology.

These have found that our memory systems actually work quite well from very early on.

Infants’ memories also seems to work in much the same way as adult memories – it’s just that infant memories are much more fragile.

2. Developmental psychology: when the self emerges

To this day the ‘mirror test’ remains the best developmental psychology experiment yet developed for examining the emergence of self-concept in infants using the mirror test .

Most people look out for number one, themselves, which makes it strange to think that there was ever a time when we had no concept of ‘me’.

A simple study dating from the early 70s suggests that before the age of around two years old we can’t recognise ourselves in the mirror.

Because of this study, and the many variations in developmental psychology that have followed, some claim that it isn’t until our second birthday that our self-concept emerges.

3. How children learn

A classic study of childhood learning suggests true understanding comes from letting go of established preconceptions.

How children revise their understanding of the world is one of the most fascinating areas of developmental psychology.

But it is not just relevant to children; we all have to take on new concepts from time-to-time – even though they may not be as profound as the origin of the species.

It’s tempting to think that learning is largely about memory – especially since in the bad old days of education learning was largely accomplished by rote.

However, the idea of ‘mental models’ suggests children create, and then test, mental models of the way the world works in order to build up our understanding, and that is how children learn.

4. Attachment styles in developmental psychology

Attachment styles analyse how people respond to threats and problems in their personal relationships.

People who find relationships difficult often become unable to participate in the ordinary give-and-take of everyday life.

They may become hostile towards others, have problems in education as well as a greater chance of developing psychiatric disorders later in life.

These difficulties sometimes have their roots in the most important early relationships, evidenced in attachment styles.

It’s no wonder that developmental psychologists are so interested in the first relationships we build with our primary caregivers.

These attachment styles are likely to prove a vital influence on all our future relationships, including those with our spouse, our workmates and our own children.

While you can’t blame everything on your parents, early relationship attachment styles are like a template that we take forward with us in life.

5. Infants imitate others when only weeks old

One of the most basic forms of social behaviour is copying another person.

Although imitation is something we adults take for granted, it’s actually a pretty demanding process for a young infant.

At the heart of imitation is understanding the difference between yourself and others – something that famous Swiss child psychologist Jean Piaget thought didn’t emerge immediately in infants.

Consequently, he argued that infants could not imitate others until they were 8 to 12 months of age.

However, now some researchers think tiny infants who are between 12- and 21-days-old can imitate others.

6. When children can simulate other minds

Theory of mind is when we can put ourselves in other people’s shoes to try and imagine their thoughts, intentions and possible actions.

Without the ability to simulate what other people are thinking we would be lost in the social world.

The emergence of theory of mind in children is a vital developmental milestone; some psychologists think that a failure to develop a theory of mind is a central component of autism.

Some developmental psychology experiments suggest that at about 4- to 6-years old a range of remarkable skills start to emerge in young children that are vital for their successful functioning in society.

They begin to understand that others can hold false beliefs, they themselves can lie, and that others can lie to them — they have a theory of mind.

7. Object permanence in developmental psychology

Object permanence , or object constancy, in developmental psychology is understanding that things continue to exist, even if you cannot seem them.

Research in developmental psychology has found that infants as young as 3.5 months seem to have a basic grasp of object permanence.

It appears that young infants are not necessarily trapped in a world of shapes which have little meaning for them.

Instead, they seem to be intuitive physicists who can carry out rudimentary reasoning about physical concepts like gravity, inertia and object permanence.

8. How infants learn their first word

An infant’s very first step in their year-long developmental journey to their first word is perhaps their most impressive.

This first step is discriminating and categorising the basic sound components of the language they are hearing.

To get an idea how hard this might be think about listening to someone speaking a language you don’t understand.

Foreign languages can sound like continuous streams of noise in which it’s very hard to pick up where one word starts and another word begins.

Research in developmental psychology finds that until about 11 months of age infants are masters of discriminating phonemes used in all different types of languages.

But after 11 months infants settle down with one set of phonemes for their first language, and lose the ability to discriminate the phonemes from other languages.

9. Play and developmental psychology

The pioneering developmental psychologist Lev Vygotsky thought that, in the preschool years, play is the leading source of development.

Through play children learn and practice many basic social skills.

They develop a sense of self, learn to interact with other children, how to make friends, how to lie and how to role-play.

The classic developmental psychology study of how play develops in children was carried out by Mildred Parten in the late 1920s at the Institute of Child Development in Minnesota ( Parten, 1933 ).

She closely observed children between the ages of 2 and 5 years and categorised the types of play.

She found six different types of play , ranging from solitary, through associative to cooperative

10. Piaget’s developmental psychology theory

Jean Piaget was a developmental psychologist whose four-stage theory, published in 1936, has proved extremely influential.

Piaget’s four stages of development theory  has the dubious claim to fame of being one of the most criticised psychological theories ever.

From the sensorimotor stage, through the pre-operational stage, the concrete operational stage and the formal operational stage, his theory attempts to describe how childhood development progresses.

However, Piaget’s experiments and theories about how children build up their knowledge of the world have faced endless challenges, many of them justified.

Read on about them here .

Author: Dr Jeremy Dean

Psychologist, Jeremy Dean, PhD is the founder and author of PsyBlog. He holds a doctorate in psychology from University College London and two other advanced degrees in psychology. He has been writing about scientific research on PsyBlog since 2004. View all posts by Dr Jeremy Dean

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Developmental Psychology: Case Study Analysis Essay

Introduction.

Developmental psychology is a significant study of human development, including cognitive, physical, perceptual, intellectual, social, emotional growth, and personality. Moreover, psychosocial development is based on a person’s individual needs, followed by social needs. Psychosocial development encompasses all of life, from the moment of birth until death. The theory of psychosocial development was developed by the well-known psychologist Erik Erikson. Furthermore, this essay aims to address the depth and insights of two case studies aligning three psychosocial issues and relevant theories followed by multiple perspectives on it and the linkages (Maree, 2021). Case studies are crucial methodologies in the context of developmental psychology. The interventions will be based on insightful and proposed strategies, contextualized with theories and case studies.

Insight and depth

In the first case study, the depth and insights are based on the life experiences of David. Currently, he is facing three psychosocial issues, namely- substance abuse, anxiety, and depression, as identified clearly from the evidence.

A second Case study is about a 26-year-old lady having violence, anger & depression .

Case study 1 background: David has just completed his graduation and is on the verge of making his prospects. However, due to familial issues and peer pressure, he engaged himself in aspects of substance abuse and depression . David had a troubled childhood due to occasional fights and conflicting issues among his parents that later in his life provoked him to engage in excessive alcohol consumption, drugs, cigarettes, and immoral activities. Obviously, he had been a victim & has witnessed his mother getting victimized by his father’s physical abuse, including kicking, hitting, and locking up in the room. In one instance, his father burnt David’s hand with a hot spoon for touching the TV.

Consequently, childhood trauma reduced academic focus and increased substance abuse, hindering moral development. Conversely , aggression is often interlinked with substance abuse as it is associated with physical abuse and violent behavior. Based on the case study, substance abuse issues also led David to engage in delinquency that is often related to immoral acts (such as suspected to be urinating on other people’s property, gambling, lying, and cheating in exams).

On the other hand, David’s anxiety issues are based on the significant aspects of old trauma, where he was often bullied at school and experienced physical abuse from his father. Internet addiction in the digital era increased his psychosocial challenges, leading to inattention & depression. To the extent that, at times, he could not recollect his name when asked.

Furthermore, depression, which was a consequence of a familial crisis and old trauma, it affected David’s mental health and his graduation life and prospects. In addition, the ability to improvise his futuristic career development seemed futile, and he engrossed himself in pessimism (Kalin, 2020). On the other hand, depression is often interlinked with self-mutilation symptoms, where the patient is often seen to cause self-injury out of despair and anxiety.

Hence, in close alignment with the aspects mentioned above, further interventions and strategies for psychosocial development will bring development in the overall life experiences of David.

Three Theories and concepts on psychological development

David’s situation can be commented on through the theories of psychological development by scholars such as Kohlberg’s Theory of moral development, Baumrind’s Concept of parenting style, and Moffitt’s Theory of adolescence-limited and life-course-persistent antisocial behavior. Kohlberg has devoted much of his work to the stages of moral maturation, people and the basic conditions for it. According to Kohlberg, external conditions, including moral teachings, social norms, and education, are not sufficient for a person to reach moral maturity. The latter is finally formed under the influence of underlying attitudes, which are acquired primarily through socialization and communication. The consequences of David’s unfavorable family environment provoked deviations in behavior, including aggression and alienation; these conditions, in turn, impede the construction of healthy communication with other people. Consequently, for these reasons, the adolescent is unable to reach the proper stage of moral development and needs competent therapy.

Moyfitt’s theory suggests what David’s deviant behavior can lead to. Acts of aggression and signs of social maladjustment show that he needs systematic psychological support. If this does not happen, the propensity for criminal behavior may become a permanent part of the young person’s life rather than an episode of adolescence. Baumrind investigated parenting styles and their impact on the formation of a person’s personality. In David’s case, there is an authoritarian type of parenting, which implies a disregard for the child’s psychological needs. The consequences of this parental attitude seem logical and consistent with the researcher’s theory.

Adequacy of proposals and interventions

To deal with David’s psychosocial issues, the proposed strategies for treating anxiety are based on insightful interventions of mindfulness programs, relaxation techniques, and exercise sessions followed by dietary adjustments and cognitive therapy . Additionally, talk therapies, psychotherapy, and medications, followed by behavioral therapy , will help battle depression ( Shepardson et al. 2022 ) . Moreover, in this context, effective interventions for substance abuse and the theoretical aspects are also necessary, including rehabilitation programs in clinics, community-based programs, prevention education, and medication ( Hogue, Henderson, Becker & Knight, 2018 ) .

Hence, based on the contextualized aspects of developmental psychology, these inventions will prove effective for the case study of David.

Links between the proposed strategies and the theories cited

Diana baumrind: concept of parenting style.

Baumrind’s concept of parenting style implies that the parental approach impacts child behavior and leads to different influences on their development. In the case of David, the authoritarian parenting style led to self-consciousness and unhappiness, which in turn led to depression. The proposed strategy to deal with depression involves talk therapies, psychotherapy, medications, and behavioral therapy. In this sense, the patient will be able to understand the roots of his mental health issues. Since Baumrind’s concept claims that the root of children’s behavioral issues is the parenting style, David will be able to learn the causes of his low self-esteem and the remedy for it. However, considering that David struggles with not only low self-esteem but also depression, medication will be required.

Kohlberg: Theory of moral development

Kohlberg’s theory indicates the distortion of David in terms of substance abuse. According to the theory, David had to be exposed to the concepts of right and wrong at a young age. However, due to constant physical abuse, the young man has a distorted perception of the harmful effects of addiction and self-destructive behaviors. As a result, the solution to such issues within the framework of Kohlberg is to educate David and draw a distinct line between self-destructive and positive actions during the learning process. Consequently, to reach this objective, rehabilitation programs in clinics, community-based programs, and prevention education must be applied.

Moffit: Adolescence-Limited and Life-Course-Persistent Antisocial Behavior

Finally, the concept of Moffit divides the antisocial behavior of adolescents into a few groups, such as one limited to adolescence period and another with persistent aberrant behavior. In the context of Moffit, David’s antisocial behavior can be categorized as a life-course persistent type due to constant exposure to stress and bullying (De George et al., 2018). Consequently, the issues manifest in the anxiety of the young man. The strategies to deal with anxiety include mindfulness programs, relaxation techniques, and exercise sessions with dietary adjustments and cognitive therapy. Thus, the therapy can show David appropriate coping techniques and guide the process of building social interactions, which was emphasized as essential by Moffit. Otherwise, according to Moffit’s concept, without interventions, the individual will be prone to committing offenses.

Case study 2: Identifying and Describing the Psychosocial Problems/Issues

The next case study will be about 26-year-old lady, Mrs. Shekar, who had difficulties getting into a relationship because of her anger, violence, and lack of concern for others. She dated her boyfriend for about two years before deciding to settle together. A year later, Mrs. Shekar’s spouse (Mr. Shekar) started drinking excessively and came home late. Her husband argued that Mrs. Shekar was not caring and romantic like other ladies he had met. Mr. Shekar further claimed that his wife was only concerned about her work and not the marriage. One night, Mr. Shekar came home drunk and asked her wife to serve him food. Mrs. Shekar stood up, grabbed Mr. Shekar by the neck, threw him on the floor, and went straight to her room. This occurrence severely impacted Mr. Shekar, who decided to pack his belongings and relocate to his mother’s home. Mrs. Shekar became lonely and angry, which developed into depression. These three psychosocial problems interfered with Mrs. Shekar’s ability to perform her roles typically and even led her to quit her job.

Theories and Concepts on Psychosocial Development

Although there are no details about the childhood life of Mrs. Shekar, there is a possibility that her childhood led her to difficulty forming and maintaining her marriage relationship. During Mrs. Shekar’s adolescence, she probably missed learning to socialize with members of the opposite sex or establishing her sexual identity to prepare herself for the next stage in her life. Three theories apply to Mrs. Shekar’s situation: Diana Baumrind’s Parenting Styles Model , Terrie Moffitt’s Theory of Antisocial Behavior, and Kohlberg’s Stages of Moral Development . According to Baumrind’s Parenting Styles Model, Mrs. Shekar may find it difficult to sustain her marriage relationship because she was raised authoritatively.

Further, authoritarian parents enforce a strict policy of one-way communication via commands and regulations (Zheng et al., 2022). Their methods of discipline are authoritarian, meaning they are based on power and authority rather than on any rationale. Parental authority figures are often cold and uncaring of their children (Masud et al., 2019). They often rationalize their harsh treatment of children as an effort to build character. Mrs. Shekar’s inability to show affection for her husband indicates the difficulties that often arise in children nurtured by parents.

Additionally, Moffitt’s antisocial behavior theory concludes that neurological deficiencies account for anomalous behaviors in chronic lifelong offenders (Carlisi et al., 2020). Those who commit crimes only during their teens are not neurologically impaired; instead, their antisocial behavior results from associating with like-minded peers. Since Mrs. Shekar is an adult and still demonstrates criminal behavior, she may have neurological impairment. This disorder makes her continue engaging in criminal behavior even past adolescence.

Kohlberg’s Stages of Moral Development theory also applies to Mrs. Shekar’s situation. Kohlberg’s (1973) phases of moral growth are the most often referenced, notwithstanding criticism that they may not apply uniformly across cultures and sexes. It divides the phases of moral development into three distinct levels (Mathes, 2021). Supposedly, Mrs. Shekar is an adult and should have attained the postconventional level, where she is supposed to have a different view of drinking and coming home late as she considers these acts immoral. As we mature, we realize that there is no universally agreed-upon standard of right and wrong and that norms and laws may and do change depending on a person’s culture (Baldwin, 2018). To be moral is to respect the standards set by one’s community or culture. At this point, right and wrong depend on the specifics of the situation.

Explicit Links between the Issues, Experiences, and Course Concepts

Mrs. Shekar’s violence, anger, and depression demonstrate that she must have missed some stages of development and may have experienced poor parenting. This lady’s attack on her husband’s drinking and coming home late may be linked to her belief that drinking alcohol and coming home late is immoral. However, these habits are not considered immoral in some cultures. Mrs. Shekar has failed to reach the pre-conventional level of development, which requires that individuals appreciate the cultural practices of others (Ahmeti & Ramadani, 2021). In this case, Mrs. Shekar should have served her husband meals and waited until he was sober to find out why he came home late.

Additionally, Mrs. Shekar’s violent behavior is attributed to a neurological problem. According to Moffitt’s theory, anyone who exhibits antisocial behavior beyond the teenage stage is a lifelong persistent offender. Also, Mrs. Shekar’s parents may have raised her in an authoritarian setting. Children raised by authoritarian parents are likely to become violent, lonely, and depressed later because they were mistreated in their childhood (Hadji Charalambous & Demetriou, 2020). These aspects are seen when Mrs. Shekar attacks her husband.

Applying Concepts Learnt to Propose Interventions

Mrs. Shekar should seek cognitive behavioural therapy. The goal of therapy is to assist the angry individual in identifying the negative, self-defeating beliefs that fuel their outbursts of rage (Toohey, 2021). Mrs. Shekar needs to see a therapist to discover effective coping mechanisms for dealing with her stress. Medication may also help treat Mrs. Shekar’s anger since it is a mental health problem. Although the ultimate objective of treatment plans is to have the patient function independently, some medications may aid in the meantime (Toohey, 2021). Anger problems are a typical indication for antidepressants, including Prozac, Celexa, and Zoloft. Although these medications do not work by directly reducing levels of stress hormones in the brain, they may help people feel more at ease overall. Cognitive behavioral therapy, psychodynamic therapy, and interpersonal therapy are the most prevalent approaches to treating depression (McAllister-Williams et al., 2020). Mrs. Shekar may benefit from these restorative practices.

To conclude, based on developmental psychology, this essay has implemented the case study of David & Mrs. Shekar with three psychosocial issues. Additionally, the work aligned them with three relevant theories, followed by the relevant interventions based on insightful strategies contextualized with the case study and theories. Nevertheless, psychosocial development is essential for overall psychological and social development. It is essential to note that there are problems in a person’s mental development that need not only treatment but also restoration for normal functioning of the psyche. Thus, it assists the fight against anger and other manifestations of unhealthy behavior.

De George, L., Cunial, K., Sigelman, C. K., & Rider, E. A. (2018). Life span human development . Cengage Learning Australia.

• Kohlberg's Three Levels of Moral Reasoning
• Morality in Kohlberg's and Piaget's Views
• Ethics: Utilitarian, Deontological, and Kohlberg’s Theory
• Constructive Developmental Theory: Overview
• The Impact of Freud on Early Childhood Education
• Development: Aspects of Attachment Theory
• Origins of Success in Outliers
• Debates Regarding Human Development
• Chicago (A-D)
• Chicago (N-B)

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Topics for research, papers, and other projects

Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

Emily is a board-certified science editor who has worked with top digital publishing brands like Voices for Biodiversity, Study.com, GoodTherapy, Vox, and Verywell.

• Childhood Topics
• Adolescence Topics
• Adulthood Topics
• How to Choose
• Tips for Students

Are you looking for a developmental psychology topic for a psychology paper , experiment, or science fair project? Topics you might pick can range from prenatal development to health during the final stages of life.

Developmental psychology is a broad topic that involves studying how people grow and change throughout their whole lifetime. Topics don't just include physical growth but also the emotional, cognitive, and social development that people experience at different stages of their lives.

At a Glance

The following are just a few different topics that might help inspire you. Remember, these are just ideas to help you get started. You might opt to explore one of these areas, or you might think of a related question that interests you as well.

Developmental Psychology Topics on Childhood

• Could packaging nutritious foods in visually appealing ways encourage children to make healthier food choices?
• Do children who listen to music while studying perform better or worse on exams?
• Do students who eat breakfast perform better in school than those who do not eat breakfast?
• Does birth order have an impact on procrastination ? Are first-borns less likely to procrastinate? Are last-borns more likely to put off tasks until the last minute?
• Does teaching infants sign language help or hinder the language acquisition process?
• How do parenting styles impact a child's level of physical activity? Are children raised by parents with permissive or uninvolved parents less active than those raised by parents with authoritative or authoritarian styles?
• How does bullying impact student achievement? Are bullied students more likely to have worse grades than their non-bullied peers?
• Which type of reinforcement works best for getting students to complete their homework: a tangible reward (such as a piece of candy) or social reinforcement (such as offering praise when homework is completed on time)?

Developmental Psychology Topics on Adolescence

• What factors tend to influence the onset of depression in teens and young adults?
• How do peer relationships influence identity formation during adolescence and young adulthood?
• What impact do parent-child relationships have in predicting substance use among teens and young adults?
• How does early substance use during adolescence impact impulsivity and risk-taking during early adulthood?
• How does technology use during adolescence influence social and emotional development?
• How does social media use influence body image among teens?
• What factors contribute to success during the transition from the teen years to early adulthood?
• How do cultural differences impact different aspects of adolescent development?

Developmental Psychology Topics on Adulthood

• Are older adults who rate high in self-efficacy more likely to have a better memory than those with low self-efficacy?
• Do the limits of short-term memory change as we age? How do the limits of short-term memory compare at ages, 15, 25, 45, and 65?
• Do mental games such as word searches, Sudoku, and word matching help elderly adults keep their cognitive skills sharp?
• How do explanations for the behavior of others change as we age? Are younger adults more likely to blame internal factors for events and older adults more likely to blame external variables?

Choosing Developmental Psychology Topics

Developmental psychology is a huge and diverse subject, so picking a topic isn't always easy. Some tips that can help you choose a good developmental psychology topic include:

• Focus on a specific topic : Make sure that your topic isn't too broad to avoid getting overwhelmed by the amount of information available
• Have a clear question or hypothesis : Your research question should be focused and clearly defined
• Do some background research : Spend some time reviewing the existing literature to get a better idea about what you want to cover with your topic
• Consider developmental theories : You might consider analyzing your topic through the lens of a particular theory of developmental psychology
• Check out recent research : Use research databases to find the most recently published research on your topic

Before you start working on any paper, experiment, or science project, the first thing you need to do is understand the rules your instructor has established for the assignment.

Also, be sure to check the official guidelines given by your teacher. If you are not sure about these guidelines, ask your instructor if there are any specific requirements before you get started on your research .

If you are going to actually conduct an experiment , you need to present your idea to your instructor to gain their permission before going forward. In some cases, you might have to also present your plan to your school's Institutional Review Board.

Tips for Researching Developmental Psychology Topics

After you have gotten to move forward with your chosen topic, the next step is to do some background research. This step is essential! If you are writing a paper, the information you find will make up your literature review.

If you are performing an experiment, it will provide background information for the introduction of your lab report . For a psychology science project, this research will help you in your presentation and can help you decide how to best approach your own experiment.

What This Means For You

Choosing a topic for a developmental psychology experiment, paper, or project can be tough! The ideas above can be a great place to start, but you might also consider questions you've had about your own life. Once you have a general idea for your topic, narrow it down, do some background research and talk to your instructor.

Nielsen M, Haun D. Why developmental psychology is incomplete without comparative and cross-cultural perspectives .  Philos Trans R Soc Lond B Biol Sci . 2016;371(1686):20150071. doi:10.1098/rstb.2015.0071

Leite DFB, Padilha MAS, Cecatti JG. Approaching literature review for academic purposes: The Literature Review Checklist .  Clinics (Sao Paulo) . 2019;74:e1403. Published 2019 Nov 25. doi:10.6061/clinics/2019/e1403

Grady C. Institutional review boards: Purpose and challenges .  Chest . 2015;148(5):1148-1155. doi:10.1378/chest.15-0706

Kim WO. Institutional review board (IRB) and ethical issues in clinical research . Korean Journal of Anesthesiology . 2012;62(1):3-12. doi:10.4097/kjae.2012.62.1.3

By Kendra Cherry, MSEd Kendra Cherry, MS, is a psychosocial rehabilitation specialist, psychology educator, and author of the "Everything Psychology Book."

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