definition of case study according to psychology

• Bipolar Disorder
• Therapy Center
• When To See a Therapist
• Types of Therapy
• Best Online Therapy
• Best Couples Therapy
• Managing Stress
• Sleep and Dreaming
• Understanding Emotions
• Self-Improvement
• Healthy Relationships
• Student Resources
• Personality Types
• Guided Meditations
• Verywell Mind Insights
• 2024 Verywell Mind 25
• Mental Health in the Classroom
• Editorial Process
• Meet Our Review Board
• Crisis Support

What Is a Case Study?

Weighing the pros and cons of this method of research

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

Cara Lustik is a fact-checker and copywriter.

Verywell / Colleen Tighe

• Pros and Cons

What Types of Case Studies Are Out There?

Where do you find data for a case study, how do i write a psychology case study.

A case study is an in-depth study of one person, group, or event. In a case study, nearly every aspect of the subject's life and history is analyzed to seek patterns and causes of behavior. Case studies can be used in many different fields, including psychology, medicine, education, anthropology, political science, and social work.

The point of a case study is to learn as much as possible about an individual or group so that the information can be generalized to many others. Unfortunately, case studies tend to be highly subjective, and it is sometimes difficult to generalize results to a larger population.

While case studies focus on a single individual or group, they follow a format similar to other types of psychology writing. If you are writing a case study, we got you—here are some rules of APA format to reference.  

At a Glance

A case study, or an in-depth study of a person, group, or event, can be a useful research tool when used wisely. In many cases, case studies are best used in situations where it would be difficult or impossible for you to conduct an experiment. They are helpful for looking at unique situations and allow researchers to gather a lot of˜ information about a specific individual or group of people. However, it's important to be cautious of any bias we draw from them as they are highly subjective.

What Are the Benefits and Limitations of Case Studies?

A case study can have its strengths and weaknesses. Researchers must consider these pros and cons before deciding if this type of study is appropriate for their needs.

One of the greatest advantages of a case study is that it allows researchers to investigate things that are often difficult or impossible to replicate in a lab. Some other benefits of a case study:

• Allows researchers to capture information on the 'how,' 'what,' and 'why,' of something that's implemented
• Gives researchers the chance to collect information on why one strategy might be chosen over another
• Permits researchers to develop hypotheses that can be explored in experimental research

On the other hand, a case study can have some drawbacks:

• It cannot necessarily be generalized to the larger population
• Cannot demonstrate cause and effect
• It may not be scientifically rigorous
• It can lead to bias

Researchers may choose to perform a case study if they want to explore a unique or recently discovered phenomenon. Through their insights, researchers develop additional ideas and study questions that might be explored in future studies.

It's important to remember that the insights from case studies cannot be used to determine cause-and-effect relationships between variables. However, case studies may be used to develop hypotheses that can then be addressed in experimental research.

Case Study Examples

There have been a number of notable case studies in the history of psychology. Much of  Freud's work and theories were developed through individual case studies. Some great examples of case studies in psychology include:

• Anna O : Anna O. was a pseudonym of a woman named Bertha Pappenheim, a patient of a physician named Josef Breuer. While she was never a patient of Freud's, Freud and Breuer discussed her case extensively. The woman was experiencing symptoms of a condition that was then known as hysteria and found that talking about her problems helped relieve her symptoms. Her case played an important part in the development of talk therapy as an approach to mental health treatment.
• Phineas Gage : Phineas Gage was a railroad employee who experienced a terrible accident in which an explosion sent a metal rod through his skull, damaging important portions of his brain. Gage recovered from his accident but was left with serious changes in both personality and behavior.
• Genie : Genie was a young girl subjected to horrific abuse and isolation. The case study of Genie allowed researchers to study whether language learning was possible, even after missing critical periods for language development. Her case also served as an example of how scientific research may interfere with treatment and lead to further abuse of vulnerable individuals.

Such cases demonstrate how case research can be used to study things that researchers could not replicate in experimental settings. In Genie's case, her horrific abuse denied her the opportunity to learn a language at critical points in her development.

This is clearly not something researchers could ethically replicate, but conducting a case study on Genie allowed researchers to study phenomena that are otherwise impossible to reproduce.

There are a few different types of case studies that psychologists and other researchers might use:

• Collective case studies : These involve studying a group of individuals. Researchers might study a group of people in a certain setting or look at an entire community. For example, psychologists might explore how access to resources in a community has affected the collective mental well-being of those who live there.
• Descriptive case studies : These involve starting with a descriptive theory. The subjects are then observed, and the information gathered is compared to the pre-existing theory.
• Explanatory case studies : These   are often used to do causal investigations. In other words, researchers are interested in looking at factors that may have caused certain things to occur.
• Exploratory case studies : These are sometimes used as a prelude to further, more in-depth research. This allows researchers to gather more information before developing their research questions and hypotheses .
• Instrumental case studies : These occur when the individual or group allows researchers to understand more than what is initially obvious to observers.
• Intrinsic case studies : This type of case study is when the researcher has a personal interest in the case. Jean Piaget's observations of his own children are good examples of how an intrinsic case study can contribute to the development of a psychological theory.

The three main case study types often used are intrinsic, instrumental, and collective. Intrinsic case studies are useful for learning about unique cases. Instrumental case studies help look at an individual to learn more about a broader issue. A collective case study can be useful for looking at several cases simultaneously.

The type of case study that psychology researchers use depends on the unique characteristics of the situation and the case itself.

There are a number of different sources and methods that researchers can use to gather information about an individual or group. Six major sources that have been identified by researchers are:

• Archival records : Census records, survey records, and name lists are examples of archival records.
• Direct observation : This strategy involves observing the subject, often in a natural setting . While an individual observer is sometimes used, it is more common to utilize a group of observers.
• Documents : Letters, newspaper articles, administrative records, etc., are the types of documents often used as sources.
• Interviews : Interviews are one of the most important methods for gathering information in case studies. An interview can involve structured survey questions or more open-ended questions.
• Participant observation : When the researcher serves as a participant in events and observes the actions and outcomes, it is called participant observation.
• Physical artifacts : Tools, objects, instruments, and other artifacts are often observed during a direct observation of the subject.

If you have been directed to write a case study for a psychology course, be sure to check with your instructor for any specific guidelines you need to follow. If you are writing your case study for a professional publication, check with the publisher for their specific guidelines for submitting a case study.

Here is a general outline of what should be included in a case study.

Section 1: A Case History

This section will have the following structure and content:

Background information : The first section of your paper will present your client's background. Include factors such as age, gender, work, health status, family mental health history, family and social relationships, drug and alcohol history, life difficulties, goals, and coping skills and weaknesses.

Description of the presenting problem : In the next section of your case study, you will describe the problem or symptoms that the client presented with.

Describe any physical, emotional, or sensory symptoms reported by the client. Thoughts, feelings, and perceptions related to the symptoms should also be noted. Any screening or diagnostic assessments that are used should also be described in detail and all scores reported.

Your diagnosis : Provide your diagnosis and give the appropriate Diagnostic and Statistical Manual code. Explain how you reached your diagnosis, how the client's symptoms fit the diagnostic criteria for the disorder(s), or any possible difficulties in reaching a diagnosis.

Section 2: Treatment Plan

This portion of the paper will address the chosen treatment for the condition. This might also include the theoretical basis for the chosen treatment or any other evidence that might exist to support why this approach was chosen.

• Cognitive behavioral approach : Explain how a cognitive behavioral therapist would approach treatment. Offer background information on cognitive behavioral therapy and describe the treatment sessions, client response, and outcome of this type of treatment. Make note of any difficulties or successes encountered by your client during treatment.
• Humanistic approach : Describe a humanistic approach that could be used to treat your client, such as client-centered therapy . Provide information on the type of treatment you chose, the client's reaction to the treatment, and the end result of this approach. Explain why the treatment was successful or unsuccessful.
• Psychoanalytic approach : Describe how a psychoanalytic therapist would view the client's problem. Provide some background on the psychoanalytic approach and cite relevant references. Explain how psychoanalytic therapy would be used to treat the client, how the client would respond to therapy, and the effectiveness of this treatment approach.
• Pharmacological approach : If treatment primarily involves the use of medications, explain which medications were used and why. Provide background on the effectiveness of these medications and how monotherapy may compare with an approach that combines medications with therapy or other treatments.

This section of a case study should also include information about the treatment goals, process, and outcomes.

When you are writing a case study, you should also include a section where you discuss the case study itself, including the strengths and limitiations of the study. You should note how the findings of your case study might support previous research. 

In your discussion section, you should also describe some of the implications of your case study. What ideas or findings might require further exploration? How might researchers go about exploring some of these questions in additional studies?

Need More Tips?

Here are a few additional pointers to keep in mind when formatting your case study:

• Never refer to the subject of your case study as "the client." Instead, use their name or a pseudonym.
• Read examples of case studies to gain an idea about the style and format.
• Remember to use APA format when citing references .

Crowe S, Cresswell K, Robertson A, Huby G, Avery A, Sheikh A. The case study approach .  BMC Med Res Methodol . 2011;11:100.

Crowe S, Cresswell K, Robertson A, Huby G, Avery A, Sheikh A. The case study approach . BMC Med Res Methodol . 2011 Jun 27;11:100. doi:10.1186/1471-2288-11-100

Gagnon, Yves-Chantal.  The Case Study as Research Method: A Practical Handbook . Canada, Chicago Review Press Incorporated DBA Independent Pub Group, 2010.

Yin, Robert K. Case Study Research and Applications: Design and Methods . United States, SAGE Publications, 2017.

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

Case Study Research Method in Psychology

Saul McLeod, PhD

Editor-in-Chief for Simply Psychology

BSc (Hons) Psychology, MRes, PhD, University of Manchester

Saul McLeod, PhD., is a qualified psychology teacher with over 18 years of experience in further and higher education. He has been published in peer-reviewed journals, including the Journal of Clinical Psychology.

Learn about our Editorial Process

Olivia Guy-Evans, MSc

Associate Editor for Simply Psychology

BSc (Hons) Psychology, MSc Psychology of Education

Olivia Guy-Evans is a writer and associate editor for Simply Psychology. She has previously worked in healthcare and educational sectors.

On This Page:

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

What is a case study psychology?

What is a Case Study in Psychology?

A case study in psychology is a detailed examination of a single individual or a small group of individuals, often with a unique set of characteristics or circumstances. Case studies are used to gain a deeper understanding of a particular phenomenon, concept, or behavior, and to develop theories and hypotheses that can be tested and validated through further research.

History of Case Studies in Psychology

The use of case studies in psychology dates back to the early days of the discipline. Sigmund Freud , the founder of psychoanalysis, used case studies to develop his theories of the human mind and behavior. Freud’s work with patients, such as the famous case of "Little Hans," helped to lay the foundation for the use of case studies in psychology.

Key Characteristics of a Case Study in Psychology

There are several key characteristics that define a case study in psychology:

• In-depth investigation : A case study involves a detailed, in-depth examination of a single individual or small group of individuals.
• Holistic approach : Case studies consider the individual or group as a whole, incorporating multiple factors and variables that may be affecting their behavior or experiences.
• Qualitative data : Case studies typically involve the collection of qualitative data, such as observations, interviews, and self-report measures.
• Contextualized : Case studies are often conducted within a specific context, such as a particular cultural or social environment.

Types of Case Studies in Psychology

There are several types of case studies in psychology, including:

• Descriptive case studies : These studies aim to provide a detailed description of a particular phenomenon or behavior.
• Exploratory case studies : These studies aim to explore a previously unexplored area or phenomenon.
• Explanatory case studies : These studies aim to provide an explanation for a particular phenomenon or behavior.
• Intervention case studies : These studies involve the implementation of an intervention or treatment, and the evaluation of its effectiveness.

Goals and Benefits of Case Studies in Psychology

The goals and benefits of case studies in psychology include:

• Increased understanding of a particular phenomenon or behavior : Case studies can provide a deeper understanding of a particular behavior or phenomenon, and help to identify underlying factors and mechanisms.
• Development of theories and hypotheses : Case studies can be used to develop theories and hypotheses that can be tested and validated through further research.
• Identification of potential interventions or treatments : Case studies can be used to identify potential interventions or treatments, and to evaluate their effectiveness.

Example of a Case Study in Psychology

The Case of Phineas Gage

Phineas Gage was a 25-year-old man who worked as a foreman for a construction company. In 1848, Gage suffered a severe head injury when a tamping iron that he was using to pack explosives into a hole accidentally pierced his skull and entered his frontal lobe. The accident resulted in significant damage to his prefrontal cortex, an area of the brain associated with decision-making, personality, and social behavior.

After the accident, Gage underwent a dramatic transformation in his behavior, exhibiting changes that were described by his friends and family as "brain damaged." He became impulsive, irritable, and prone to outbursts of anger. His language and speech became slurred, and he had difficulty with memory and learning.

Gage’s case study has been widely studied and is considered one of the most important in the field of psychology. It has shed light on the role of the prefrontal cortex in behavior and decision-making, and has helped to develop our understanding of the complex relationships between brain and behavior.

In conclusion, case studies in psychology are a powerful tool for gaining a deeper understanding of a particular phenomenon or behavior. By examining a single individual or small group in detail, researchers can develop a more nuanced understanding of complex behaviors and develop theories and hypotheses that can be tested and validated through further research. The use of case studies in psychology has a long history, and continues to be an important part of our understanding of human behavior and the human mind.

Frequently Asked Questions

• What is a case study in psychology? : A case study in psychology is a detailed examination of a single individual or small group of individuals, often with a unique set of characteristics or circumstances.
• Why are case studies used in psychology? : Case studies are used to gain a deeper understanding of a particular phenomenon or behavior, and to develop theories and hypotheses that can be tested and validated through further research.
• What are some common features of a case study in psychology? Some common features of a case study in psychology include: in-depth investigation, holistic approach, qualitative data, and contextualized.
• What are some types of case studies in psychology? There are several types of case studies in psychology, including descriptive, exploratory, explanatory, and intervention case studies.
• American Psychological Association. (2020). Publication Manual of the American Psychological Association (7th ed.). Washington, DC: American Psychological Association.
• Freud, S. (1901). The Psychopathology of Everyday Life. New York: Macmillan.
• Kleist, K., & Zilles, K. (2013). The case of Phineas Gage: 150 years later. Nature Reviews Neuroscience, 14(5), 344-345.
• Rasmussen, K., & Gilliland, S. E. (2002). Case studies in psychology: A division of labor or a methodological innovation? Journal of Clinical Psychology, 58(5), 531-543.
• How to hide yourself on Facebook?
• Does safari work on Windows?
• Does university of georgia have a nursing program?
• What is amazonʼs marketing strategy?
• Can You get bally sports on YouTube tv?
• How to read music notation?
• How to check iPhone for water damage?
• Does Snapchat video calling show your face while ringing?

Leave a Comment Cancel Reply

Your email address will not be published. Required fields are marked *

Save my name, email, and website in this browser for the next time I comment.

All Subjects

Intro to Psychology

Study guides for every class, that actually explain what's on your next test, case studies, from class:.

A case study is an in-depth analysis of a specific individual, group, or situation. It involves the detailed examination of a particular subject to gain a comprehensive understanding of its complexities and unique characteristics. Case studies are a widely used research method in psychology and other social sciences.

congrats on reading the definition of Case Studies . now let's actually learn it.

5 Must Know Facts For Your Next Test

• Case studies provide a detailed, in-depth understanding of a specific individual, group, or situation, allowing researchers to explore complex phenomena in real-world contexts.
• Case studies often involve the collection of various types of data, including interviews, observations, documents, and artifacts, to gain a comprehensive understanding of the subject.
• Case studies are particularly useful for exploring rare or unique phenomena, generating hypotheses for future research, and understanding the complexities of human behavior and experiences.
• The findings from case studies are typically not generalizable to larger populations, but they can provide valuable insights and inform the development of new theories or the refinement of existing ones.
• Case studies are an important research method in psychology, as they allow researchers to study complex human behaviors, mental processes, and social interactions in depth.

Review Questions

• Case studies provide a detailed, in-depth examination of specific individuals, groups, or situations, allowing researchers to explore the complexities of human behavior and mental processes in real-world contexts. By collecting a wide range of data, including interviews, observations, and documents, case studies enable researchers to gain a comprehensive understanding of the unique characteristics and experiences of the subject, which can lead to the development of new hypotheses and the refinement of existing theories in psychology.
• The primary advantage of case studies is that they allow for a deep, nuanced understanding of complex phenomena that may not be easily captured through other research methods. Case studies can provide valuable insights into rare or unique situations, generate hypotheses for future research, and contribute to the development of new theories. However, the findings from case studies are typically not generalizable to larger populations, and the subjective nature of the data collection and analysis can introduce potential biases. Additionally, case studies can be time-consuming and resource-intensive, making them less suitable for large-scale studies. Nonetheless, case studies remain an important research method in psychology, particularly for exploring the complexities of human behavior and mental processes.
• Case studies play a crucial role in the scientific method and theory development in psychology. By providing in-depth, contextual examinations of specific individuals, groups, or situations, case studies can generate new hypotheses and insights that can inform the development of theories. The rich, qualitative data collected through case studies can help researchers identify previously overlooked variables, refine existing theories, and explore the boundaries of current understanding. While the findings from case studies may not be directly generalizable, they can contribute to the overall body of knowledge in psychology and guide the design of future, larger-scale studies. In this way, case studies serve as an important complement to other research methods, helping to advance the scientific understanding of human behavior and mental processes.

Related terms

Qualitative Research : Research that focuses on understanding phenomena through observation and interpretation, often involving the collection of non-numerical data.

Naturalistic Observation : A research method where the researcher observes subjects in their natural environment without intervening or manipulating the situation.

Idiographic Approach : A research approach that emphasizes the unique characteristics of individual cases, in contrast to the nomothetic approach which seeks to identify general laws or patterns.

" Case Studies " also found in:

Subjects ( 231 ).

• AP Psychology
• Abnormal Psychology
• Additive Manufacturing and 3D Printing
• Adolescent Development
• Advanced Communication Research Methods
• Advanced Design Strategy and Software
• Advanced Legal Research
• Advanced Media Writing
• Advanced Public Speaking
• Advertising Copywriting
• Africa Since 1800
• American Society
• Anthropology of Food
• Anthropology of Globalization
• Applied Impact Evaluation
• Art Direction
• Art Theory and Criticism
• Art Therapy
• Art and Meditation
• Art and Neuroscience
• Art and Social Justice
• Art and Trauma Studies
• Behavioral and Social Sciences in Public Health
• Bilingualism in History
• Biologically Inspired Robotics
• Biomedical Engineering I
• Brand Experience Marketing
• Brand Management and Strategy
• Business Anthropology
• Business Economics
• Business Ethics in Nanotechnology
• Business Ethics in the Digital Age
• Business Fundamentals for Public Relations
• Business Incubation and Acceleration
• Business Networking
• Business Semiotics
• Business Storytelling
• Business and Economics Reporting
• Causes and Prevention of Violence
• Classroom Management
• Coastal Resilience Engineering
• Cognitive Bias in Business Decision Making
• Cognitive Computing in Business
• Communication Research Methods
• Communication and Popular Culture
• Communication for Leaders
• Comparative Criminal Justice Systems
• Contemporary Social Policy
• Corporate Communication
• Corporate Sustainability Reporting
• Courts and Society
• Creative Producing II
• Crime and Human Development
• Criminal Justice
• Criminology
• Crisis Management and Communication
• Critical Native American Legal and Policy Studies
• Critical Thinking
• Cross-Cultural Management
• Curatorial Studies
• Curriculum Development
• Customer Experience Management
• Cybersecurity for Business
• Data Visualization for Business
• Design Strategy and Software I
• Design and Interactive Experiences
• Developmental Psychology
• Deviance and Social Control
• Digital Art Preservation
• Digital Media Art
• Documentary Production
• Economic Development
• Economic Geography
• Editorial Design
• Education Policy and Reform
• Education in American Culture
• Educational Leadership
• Educational Psychology
• English and Language Arts Education
• Environmental Biology
• Ethical Supply Chain Management
• Ethics in Accounting
• Ethics in Accounting and Finance
• Ethnic Studies
• Feature Writing
• Film Industry
• Foundations of Education
• Fundamentals of Creative Development
• Gamification in Business
• Gender in Modern American History
• Gender, Sexuality, and Race in Global Political Issues
• Global Media
• Global Perspectives on Identity and Diversity
• Global Studies
• Globalization and International Political Economy
• Governmental Public Affairs
• Green Manufacturing Processes
• Health Campaigns
• History of Education
• Holistic and Complementary Approaches to Health and Healing
• Human Behavior in the Social Environment I
• Human Sexuality
• Improvisational Leadership
• Indians Overseas – A Global View
• Indigenous Issues Across the Americas
• Indigenous Peoples and Environmental Change in the North American West
• Installation Art
• Intelligent Transportation Systems
• Interactive Marketing Strategy
• Interest Groups, Social Movements, and Public Policy
• International Business Negotiations
• International Development and Sustainability
• International Economics
• International Public Relations
• Intro to Business
• Intro to Political Science
• Introduction to Brain and Behavior
• Introduction to Cognitive Science
• Introduction to Communication Writing
• Introduction to Community Psychology
• Introduction to Comparative Politics
• Introduction to Cultural Anthropology
• Introduction to Demographic Methods
• Introduction to Education
• Introduction to Engineering
• Introduction to Ethnic Studies
• Introduction to Gender Studies
• Introduction to Hospitality and Tourism
• Introduction to Human Sexuality
• Introduction to Humanities
• Introduction to Journalism
• Introduction to Music
• Introduction to Political Communications
• Introduction to Political Research
• Introduction to Political Sociology
• Introduction to Public Policy
• Introduction to Public Speaking
• Introduction to Social Media
• Introduction to Women's Studies
• Journalism Research
• Language and Culture
• Latin America, 1791-Present
• Latin American Politics
• Leadership Communication
• Lifecycle Nutrition
• Lighting Design for Stage
• Line Producing
• London Museums
• Magazine Writing and Editing
• Market Research: Tools and Techniques for Data Collection and Analysis
• Mass Media and Society
• Mathematics Education
• Media Criticism
• Media Expression and Communication
• Media Strategy
• Media and Politics
• Multimedia Reporting
• Music Psychology
• Music of the Modern Era
• Narrative Documentary Production
• Native People and Their Environment
• Negotiation and Conflict Resolution
• Neuroprosthetics
• Newswriting
• Organization Design
• Organizations and Public Policy
• Philosophy of Education
• Philosophy of Law
• Photojournalism I
• Physiology of Motivated Behaviors
• Police and Society
• Political Campaigns
• Political Economy of International Relations
• Political Geography
• Population and Society
• Power and Politics in Organizations
• Principles and Practice of Public Relations
• Production Design
• Production II
• Production III
• Professional Presentation
• Professional Selling
• Professionalism and Research in Nursing
• Psychology of Economic Decision-Making
• Psychology of Language
• Public Art and Urban Design
• Public Policy Analysis
• Public Relations Ethics
• Public Relations in Nonprofit Settings
• Quantum Leadership
• Radio Station Management
• Religion and Psychology
• Religions of the West
• Reporting in Depth
• Robotics and Bioinspired Systems
• Science Education
• Set Design for Theater and Film
• Social Problems and Public Policy
• Social Stratification
• Social Studies Education
• Sociology of Education
• Sociology of Marriage and the Family
• Sociology of Religion
• Sports Psychology
• Strategic Brand Storytelling
• Strategic Philanthropy
• Sustainable Urban Planning
• Symbolism in Art
• Tax Planning and Administration
• Technology and Policy
• The COMunicator
• The Congress
• The Craft of Writing: Film Focus
• The Modern Period
• The Social, Political, and Ethical Environment of Business
• Theater for Social Change
• Theories of International Relations
• Trauma Journalism
• Understanding Media
• Understanding Social Change and Issues of Race and Gender
• Visual Storytelling
• Women and Politics
• World Geography
• Writing for Public Relations

© 2024 Fiveable Inc. All rights reserved.

Ap® and sat® are trademarks registered by the college board, which is not affiliated with, and does not endorse this website..

n. an in-depth assessment and investigation conducted on a target individual, family unit, or social group. It requires a researcher to collect multiple types of data that would prove to be useful in creating a complete biographical, psychological, physiological, and environmental background on the case.

What is a case study in psychology?

In psychology, a case study is a comprehensive, qualitative research of a single person or occasion that offers in-depth knowledge and insight into the subject's behavior, experiences, and thought processes. Observation, interviews, and the investigation of records, papers, and other artifacts are frequently used in case studies.

What is the purpose of a case study?

A case study in psychology is designed to produce rich, comprehensive data that can be utilized to comprehend a specific phenomenon or person in deeper detail. Researchers can use case studies to investigate the complexity of human behavior and mental processes, spot trends and themes, and develop hypotheses for more study. They are a useful tool for psychology teaching and learning because they may be used to demonstrate concepts or theories in a practical setting.

Types of psychology case studies

A case study is a method used in psychology to gather comprehensive data that would help researchers better understand a particular occurrence or individual. Case studies are a useful tool for researchers because they let them explore the complexity of human thought and behavior, identify patterns and themes, and provide hypotheses for further investigation. Because they can be used to demonstrate ideas or theories in a real-world situation, they are a helpful tool for psychology teaching and learning.

The following are the five main types of case studies in psychology:

• Exploratory case studies: These case studies are designed to investigate new or under-researched areas within the field of psychology. The primary purpose of exploratory case studies is to generate hypotheses or initial theories, which can then be tested using more rigorous research methods .
• Descriptive case studies: Descriptive case studies aim to provide a comprehensive account of a specific individual, event, or phenomenon.
• Explanatory case studies: Explanatory case studies seek to identify the underlying causes or mechanisms responsible for a particular outcome or behavior. They often involve the analysis of relationships between various factors, with the goal of uncovering causal connections. These case studies may employ quantitative methods, such as statistical analyses or experiments, in addition to qualitative data collection techniques.
• Intrinsic case studies: Intrinsic case studies focus on a unique, rare, or unusual case that is of particular interest to the researcher. The primary goal of this type of case study is to gain a deep understanding of the specific individual or event, rather than generalizing the findings to a broader population.
• Instrumental case studies: Instrumental case studies use a specific case as a means to gain insight into a broader issue or to support or challenge a theory. In this type of case study, the focus is not on the individual case itself, but on the wider implications it has for understanding psychological phenomena.
• Phineas Gage : Phineas Gage was a railroad construction worker who survived a catastrophic brain injury in 1848 and is a well-known case study in the history of psychology. His example has been utilized to examine the connection between brain make-up and personality as well as the function of the frontal lobes in social cognition and judgment.
• Little Hans: Little Hans, a 5-year-old boy, was the subject of a psychoanalytic case study by Sigmund Freud in the early 20th century. The study aimed to explore the development of anxiety and phobias in children and provided support for some of Freud's theories on psychosexual development and the Oedipus complex.
• Genie: Genie was a young girl who was discovered in 1970 after being locked in isolation for most of her life. Her case has been used to study the effects of extreme social isolation on cognitive and linguistic development, as well as the critical period hypothesis in language acquisition .

References:

Baxter, P., & Jack, S. (2008). Qualitative Case Study Methodology: Study Design and Implementation for Novice Researchers. The Qualitative Report, 13(4), 544-559. https://doi.org/10.46743/2160-3715/2008.1573

Creswell, J.W. and Poth, C.N. (2018) Qualitative Inquiry and Research Design Choosing among Five Approaches. 4th Edition, SAGE Publications, Inc., Thousand Oaks. https://www.scirp.org/(S(lz5mqp453edsnp55rrgjct55))/reference/ReferencesPapers.aspx?ReferenceID=2155979

Hollweck, T. (2016). Robert K. Yin. (2014). Case Study Research Design and Methods (5th ed.). Thousand Oaks, CA: Sage. 282 pages. The Canadian Journal of Program Evaluation , 30, 108. https://doi.org/10.3138/cjpe.30.1.108

Leave a Reply

Your email address will not be published. Required fields are marked *

Latest Posts

What Happens At An ADHD Assessment

A Quick Look at the History Behind Hypnosis

A Brief History of Brainwashing: The Science of Thought Control

A Deep Dive into the Social Psychology of Leadership

Counseling Approaches to Client Care: Theories to Apply in Practice

The Future Of Education: Can You Earn A Psychology Degree Online?

Insomnia & Mental Illness: What is the Correlation?

Stop Guessing: Here Are 3 Steps to Data-Driven Psychological Decisions

Getting Help with Grief: Understanding Therapy & How It Can Help

Exploring the Psychology of Risk and Reward

Understanding ADHD in Women: Symptoms, Treatment & Support

Meeting the Milestones: A Guide to Piaget's Child Developmental Stages

Popular psychology terms, medical model, hypermnesia, affirmation, brainwashing, backup reinforcer, message-learning approach, affiliative behavior, excitation-transfer theory, posttraumatic stress disorder (ptsd), behavioral consistency, sensory adaptation.

Explore Psychology

Psychology Articles, Study Guides, and Resources

What Is a Case Study in Psychology?

A case study is a research method used in psychology to investigate a particular individual, group, or situation in depth. It involves a detailed analysis of the subject, gathering information from various sources such as interviews, observations, and documents. In a case study, researchers aim to understand the complexities and nuances of the subject under…

A case study is a research method used in psychology to investigate a particular individual, group, or situation in depth . It involves a detailed analysis of the subject, gathering information from various sources such as interviews, observations, and documents.

In a case study, researchers aim to understand the complexities and nuances of the subject under investigation. They explore the individual’s thoughts, feelings, behaviors, and experiences to gain insights into specific psychological phenomena. 

This type of research can provide great detail regarding a particular case, allowing researchers to examine rare or unique situations that may not be easily replicated in a laboratory setting. They offer a holistic view of the subject, considering various factors influencing their behavior or mental processes. 

By examining individual cases, researchers can generate hypotheses, develop theories, and contribute to the existing body of knowledge in psychology. Case studies are often utilized in clinical psychology, where they can provide valuable insights into the diagnosis, treatment, and outcomes of specific psychological disorders. 

Case studies offer a comprehensive and in-depth understanding of complex psychological phenomena, providing researchers with valuable information to inform theory, practice, and future research.

In this article

Examples of Case Studies in Psychology

Case studies in psychology provide real-life examples that illustrate psychological concepts and theories. They offer a detailed analysis of specific individuals, groups, or situations, allowing researchers to understand psychological phenomena better. Here are a few examples of case studies in psychology: 

Phineas Gage

This famous case study explores the effects of a traumatic brain injury on personality and behavior. A railroad construction worker, Phineas Gage survived a severe brain injury that dramatically changed his personality.

This case study helped researchers understand the role of the frontal lobe in personality and social behavior. 

Little Albert

Conducted by behaviorist John B. Watson, the Little Albert case study aimed to demonstrate classical conditioning. In this study, a young boy named Albert was conditioned to fear a white rat by pairing it with a loud noise.

This case study provided insights into the process of fear conditioning and the impact of early experiences on behavior. 

Genie’s case study focused on a girl who experienced extreme social isolation and deprivation during her childhood. This study shed light on the critical period for language development and the effects of severe neglect on cognitive and social functioning. 

These case studies highlight the value of in-depth analysis and provide researchers with valuable insights into various psychological phenomena. By examining specific cases, psychologists can uncover unique aspects of human behavior and contribute to the field’s knowledge and understanding.

Types of Case Studies in Psychology

Psychology case studies come in various forms, each serving a specific purpose in research and analysis. Understanding the different types of case studies can help researchers choose the most appropriate approach. 

Descriptive Case Studies

These studies aim to describe a particular individual, group, or situation. Researchers use descriptive case studies to explore and document specific characteristics, behaviors, or experiences.

For example, a descriptive case study may examine the life and experiences of a person with a rare psychological disorder. 

Exploratory Case Studies

Exploratory case studies are conducted when there is limited existing knowledge or understanding of a particular phenomenon. Researchers use these studies to gather preliminary information and generate hypotheses for further investigation.

Exploratory case studies often involve in-depth interviews, observations, and analysis of existing data. 

Explanatory Case Studies

These studies aim to explain the causal relationship between variables or events. Researchers use these studies to understand why certain outcomes occur and to identify the underlying mechanisms or processes.

Explanatory case studies often involve comparing multiple cases to identify common patterns or factors. 

Instrumental Case Studies

Instrumental case studies focus on using a particular case to gain insights into a broader issue or theory. Researchers select cases that are representative or critical in understanding the phenomenon of interest.

Instrumental case studies help researchers develop or refine theories and contribute to the general knowledge in the field. 

By utilizing different types of case studies, psychologists can explore various aspects of human behavior and gain a deeper understanding of psychological phenomena. Each type of case study offers unique advantages and contributes to the overall body of knowledge in psychology.

How to Collect Data for a Case Study

There are a variety of ways that researchers gather the data they need for a case study. Some sources include:

• Directly observing the subject
• Collecting information from archival records
• Conducting interviews
• Examining artifacts related to the subject
• Examining documents that provide information about the subject

The way that this information is collected depends on the nature of the study itself

Prospective Research

In a prospective study, researchers observe the individual or group in question. These observations typically occur over a period of time and may be used to track the progress or progression of a phenomenon or treatment.

Retrospective Research

A retrospective case study involves looking back on a phenomenon. Researchers typically look at the outcome and then gather data to help them understand how the individual or group reached that point.

Benefits of a Case Study

Case studies offer several benefits in the field of psychology. They provide researchers with a unique opportunity to delve deep into specific individuals, groups, or situations, allowing for a comprehensive understanding of complex phenomena.

Case studies offer valuable insights that can inform theory development and practical applications by examining real-life examples. 

Complex Data

One of the key benefits of case studies is their ability to provide complex and detailed data. Researchers can gather in-depth information through various methods such as interviews, observations, and analysis of existing records.

This depth of data allows for a thorough exploration of the factors influencing behavior and the underlying mechanisms at play. 

Unique Data

Additionally, case studies allow researchers to study rare or unique cases that may not be easily replicated in experimental settings. This enables the examination of phenomena that are difficult to study through other psychology research methods . 

By focusing on specific cases, researchers can uncover patterns, identify causal relationships, and generate hypotheses for further investigation.

General Knowledge

Case studies can also contribute to the general knowledge of psychology by providing real-world examples that can be used to support or challenge existing theories. They offer a bridge between theory and practice, allowing researchers to apply theoretical concepts to real-life situations and vice versa. 

Case studies offer a range of benefits in psychology, including providing rich and detailed data, studying unique cases, and contributing to theory development. These benefits make case studies valuable in understanding human behavior and psychological phenomena.

Limitations of a Case Study

While case studies offer numerous benefits in the field of psychology, they also have certain limitations that researchers need to consider. Understanding these limitations is crucial for interpreting the findings and generalizing the results. 

Lack of Generalizability

One limitation of case studies is the issue of generalizability. Since case studies focus on specific individuals, groups, and situations, applying the findings to a larger population can be challenging. The unique characteristics and circumstances of the case may not be representative of the broader population, making it difficult to draw universal conclusions. 

Researcher bias is another possible limitation. The researcher’s subjective interpretation and personal beliefs can influence the data collection, analysis, and interpretation process. This bias can affect the objectivity and reliability of the findings, raising questions about the study’s validity. 

Case studies are often time-consuming and resource-intensive. They require extensive data collection, analysis, and interpretation, which can be lengthy. This can limit the number of cases that can be studied and may result in a smaller sample size, reducing the study’s statistical power. 

Case studies are retrospective in nature, relying on past events and experiences. This reliance on memory and self-reporting can introduce recall bias and inaccuracies in the data. Participants may forget or misinterpret certain details, leading to incomplete or unreliable information.

Despite these limitations, case studies remain a valuable research tool in psychology. By acknowledging and addressing these limitations, researchers can enhance the validity and reliability of their findings, contributing to a more comprehensive understanding of human behavior and psychological phenomena. 

While case studies have limitations, they remain valuable when researchers acknowledge and address these concerns, leading to more reliable and valid findings in psychology.

Alpi, K. M., & Evans, J. J. (2019). Distinguishing case study as a research method from case reports as a publication type. Journal of the Medical Library Association , 107(1). https://doi.org/10.5195/jmla.2019.615

Crowe, S., Cresswell, K., Robertson, A., Huby, G., Avery, A., & Sheikh, A. (2011). The case study approach. BMC Medical Research Methodology , 11(1), 100. https://doi.org/10.1186/1471-2288-11-100

Paparini, S., Green, J., Papoutsi, C., Murdoch, J., Petticrew, M., Greenhalgh, T., Hanckel, B., & Shaw, S. (2020). Case study research for better evaluations of complex interventions: Rationale and challenges. BMC Medicine , 18(1), 301. https://doi.org/10.1186/s12916-020-01777-6

Willemsen, J. (2023). What is preventing psychotherapy case studies from having a greater impact on evidence-based practice, and how to address the challenges? Frontiers in Psychiatry , 13, 1101090. https://doi.org/10.3389/fpsyt.2022.1101090

Yin, Robert K. Case Study Research and Applications: Design and Methods . United States, SAGE Publications, 2017.

Explore Psychology covers psychology topics to help people better understand the human mind and behavior. Our team covers studies and trends in the modern world of psychology and well-being.

Related Articles:

What Is the Likert Scale? Definition, Examples, and Uses

A Likert scale is often used in psychology research to evaluate information about attitudes, opinions, and beliefs.

What Is an Institutional Review Board?

In psychology research, an institutional review board (also known as an IRB) is a group of individuals who review and monitor research that involves human subjects. Institutional review boards help ensure that the rights, welfare, and safety of participants are protected. They also help safeguard that psychology studies follow ethical and research guidelines such as…

Cohort Effect in Psychology: Definition and Examples

The cohort effect refers to the influence of a person’s generation or birth cohort on their attitudes, beliefs, behaviors, and life experiences. Cohorts are groups of individuals who share a common historical or social context, such as those born in the same time period, raised in the same cultural environment, or experienced a similar event…

Psychological Research Methods: Types and Tips

Psychological research methods are the techniques used by scientists and researchers to study human behavior and mental processes. These methods are used to gather empirical evidence. The goal of psychological research methods is to obtain objective and verifiable data collected through scientific experimentation and observation.  The research methods that are used in psychology are crucial…

What Is a Factorial Design? Definition and Examples

A factorial design is a type of experiment that involves manipulating two or more variables. While simple psychology experiments look at how one independent variable affects one dependent variable, researchers often want to know more about the effects of multiple independent variables. How a Factorial Design Works Let’s take a closer look at how a…

What Is a Single-Blind Study?

In psychology, a single-blind study is a type of experiment or clinical trial in which the experimenters are aware of which subjects are receiving the treatment or independent variable, but the participants of the study are not. A study in which both the experimenters and participants are unaware of who is receiving the independent variable and…