
Written by Kennedy Muthee
Introduction
Writing a psychology case study can be a daunting task, especially for students tackling this assignment for the first time. However, when broken down into structured steps, it becomes a manageable, even rewarding, process. Whether you’re writing for clinical, educational, or research purposes, understanding the correct format and approach is crucial. In this guide, we’ll show you exactly how to write a psychology case study—from preparation to submission—“the EssayAssists way.”
What Is a Psychology Case Study?
A psychology case study is an in-depth investigation of an individual, group, or event. Its goal is to explore behavioral patterns, generate new insights, and link practical observations to psychological theories. Unlike surveys or experiments, case studies allow detailed exploration of unique scenarios, making them valuable for research and clinical practice.
Key features of psychology case studies include:
- Detailed observation of a specific case.
- Use of both qualitative and quantitative data.
- Connection to existing psychological theories and literature.
- Analysis of patterns, behaviors, and treatment outcomes.
Types of Psychology Case Studies: A Complete Guide for Students

Psychology case studies are a fundamental tool for understanding human behavior in-depth. Whether you are a student, researcher, or aspiring psychologist, knowing the different types of case studies is crucial. Each type serves a specific purpose and provides unique insights into human behavior, mental health, and social interactions. In this guide, we break down the main types of psychology case studies, providing examples and tips for students.
1. Descriptive Case Studies
Descriptive case studies provide a detailed account of an individual, group, or situation. Their main goal is to present observations clearly without attempting to explain causes. These studies focus on symptoms, behaviors, and context to give a thorough understanding of the case. For example, a descriptive study may explore the daily life and therapy progress of a patient with anxiety, documenting routines, coping strategies, and behavioral patterns.
2. Exploratory Case Studies
Exploratory case studies investigate new or emerging phenomena that have not been widely studied. They are used to identify patterns, generate hypotheses, and guide further research. Flexibility is key in these studies, as researchers often work with evolving or complex situations. For instance, an exploratory case study might examine how increased screen time affects attention spans among teenagers, providing insights for larger studies.
3. Explanatory Case Studies
Explanatory case studies focus on understanding the causes behind specific behaviors, conditions, or events. They answer the “why” and “how” questions by connecting observations to psychological theories or prior research. For example, a study might investigate why children exposed to early trauma develop aggression, using cognitive-behavioral frameworks to interpret behaviors and treatment outcomes.
4. Intrinsic Case Studies
Intrinsic case studies focus on unique or rare subjects that are of interest for their own sake. The main objective is to gain deep insights into the individual case rather than generalize findings. These studies are valuable for documenting unusual behaviors or conditions. For example, studying a person with a rare neurological disorder can help psychologists understand specific cognitive or behavioral patterns that might otherwise go unnoticed.
5. Instrumental Case Studies
Instrumental case studies use a particular case to shed light on a broader issue or theory. The individual case is important, but its value lies in its ability to illustrate general principles or trends. For example, analyzing how a single student adapts to remote learning can reveal insights into broader educational psychology concepts and guide teaching strategies.
6. Single vs. Collective Case Studies
- Collective Case Studies: Analyze multiple cases to identify patterns, similarities, and differences. These studies provide more generalizable findings and are useful for comparing populations.
- Single Case Studies: Focus on one individual, event, or situation in detail. They allow for in-depth analysis and understanding of specific circumstances.
Example: A single case study might explore how one nurse manages workplace stress, while a collective case study could compare stress responses among nurses in multiple hospitals to identify common coping mechanisms.
Final Thoughts
Understanding the types of psychology case studies helps students and researchers select the most appropriate approach for their assignments or research projects. Choosing the right type ensures clarity, relevance, and meaningful insights. Remember:
- Descriptive = detailed observations
- Exploratory = investigate new patterns
- Explanatory = explain causes
- Intrinsic = unique cases
- Instrumental = general insights from one case
- Single vs. Collective = depth vs. comparison
6 Steps to Prepare Your Case Study

Proper preparation ensures your case study is thorough and credible. Follow these steps:
1. Choose Your Case
Selecting the right case is the foundation of a successful study. Choose a subject that is relevant, accessible, and informative. It should allow you to explore behaviors, symptoms, or patterns in detail. A well-chosen case makes analysis easier and ensures that your study contributes valuable insights to psychology research.
2. Collect Background Information
Before writing, gather all necessary details about your subject. This may include personal history, medical or psychological diagnoses, symptoms, and prior treatments. Accurate and thorough background information provides context for your analysis and supports the credibility of your study
3. Conduct a Literature Review
A literature review connects your case to existing research and theories. By referencing previous studies, you can support your observations and analysis. This step helps situate your work within the broader field of psychology and ensures your conclusions are evidence-based.
4. Clarify Your Objectives
Define the purpose of your case study clearly. Are you describing behaviors, exploring patterns, or explaining causes? Setting specific research questions and goals provides direction for your study and helps keep your writing focused and structured.
5. Gather Data
Collect qualitative or quantitative data relevant to your case. Methods may include interviews, observations, surveys, or recordings. The more precise and organized your data, the easier it will be to analyze and draw meaningful conclusions.
6. Analyze the Data
Review the collected information to identify patterns, behaviors, or anomalies. Relate your findings to psychological theories and previous research. Effective analysis highlights the significance of your case and provides insights that can guide future research or clinical practice.

Follow this structure to ensure clarity and professionalism:
1. Introduction/Background
Introduce your subject and context. Include age, relevant history, and why the case matters.
Example:
Thomas P., a 15-year-old from Tulsa, Oklahoma, has ADHD. Initial autism spectrum diagnoses were later adjusted as he developed. This case examines his behavioral patterns and treatment responses.
2. Presenting the Problem
Describe the issues affecting your subject. Be concise and evidence-based.
Example:
Thomas struggles with motivation and social interactions, often relying on automatic solutions to complete tasks.
3. Diagnosis and Analysis
Present your diagnosis (if applicable) and analyze patterns with a psychological framework.
Example:
Sarah N. shows signs of Asperger’s syndrome and generative disorders, confirmed via MRT scans. Her patterns indicate a combination of trauma and genetic factors.
4. Treatment Plan and Intervention
Explain therapy or intervention methods, including rationale.
Example:
A combination of meditation, counseling, and specialized group activities has been applied, reflecting the patient’s developmental needs.
5. Results and Outcomes
Report findings objectively, noting improvements, setbacks, or no change.
Example:
Thomas showed significant improvement in arts activities, but physical exercises did not yield the desired outcome.
6. Discussion
Interpret results in light of existing research and theory. Address limitations and implications for future practice.
Example:
According to Lorenz’s Human Aggression Theory, Joan’s aggressive tendencies may be linked to domestic violence exposure, indicating a need for targeted therapy.
7. Conclusion
Summarize key findings and suggest directions for future research.
Example:
Case studies demonstrate that autistic children exhibit diverse responses to treatment, requiring tailored interventions rather than generalized approaches.
8. References
Use APA or MLA formatting for all sources. Ensure proper citation to avoid plagiarism.
Common Mistakes to Avoid

Here’s a detailed breakdown of common mistakes to avoid when writing a psychology case study, with short explanations for each:
1. Including Too Much Irrelevant Detail
Adding excessive information can overwhelm the reader and distract from the main focus. Stick to relevant facts, symptoms, and behaviors that directly support your analysis.
2. Presenting Symptoms or Data Out of Order
Randomly listing observations or symptoms makes your study confusing. Always organize information logically, either chronologically or by theme, to ensure clarity.
3. Failing to Paraphrase or Cite Properly
Plagiarism can ruin your assignment. Always paraphrase sources carefully and provide accurate citations for theories, studies, or direct quotes you reference.
4. Allowing Personal Bias to Influence Analysis
Case studies require objectivity. Avoid letting personal opinions or assumptions skew your interpretation of data. Base conclusions on evidence and established psychological theories.
5. Ignoring Structure and Logical Flow
A poorly structured case study can be difficult to follow. Use a clear format—introduction, problem presentation, analysis, treatment, results, discussion, and conclusion—to guide the reader.
6. Skipping Proofreading and Review
Even small errors can affect readability and credibility. Always proofread your study carefully, ideally more than once, to correct grammar, spelling, and logical inconsistencies.
Extra Tips for Success
Here’s a concise list of extra tips for success when writing a psychology case study, each explained in a short paragraph:
1. Practice Clarity in Writing
Clear and concise writing ensures your observations, analysis, and conclusions are easy to understand. Avoid unnecessary jargon and focus on presenting information logically, so readers can follow your arguments without confusion.
2. Stay Objective and Respectful
Maintain professionalism when discussing your subject. Avoid personal bias, sensationalism, or judgmental language, and ensure your study respects the privacy and dignity of participants.
3. Use Examples and Evidence
Support your observations with specific examples from your data, interviews, or prior research. Concrete evidence strengthens your analysis and shows a clear connection between theory and practice.
4. Follow a Structured Format
Stick to a standard case study structure—introduction, problem presentation, analysis, treatment/intervention, results, discussion, and conclusion. A well-organized format improves readability and helps you cover all critical components.
5. Consult Sample Case Studies
Reviewing published case studies provides insight into formatting, style, and analysis techniques. It helps you understand how to integrate theory, observations, and research effectively.
6. Plan, Write, and Revise
Take time to plan your study before writing. Draft your sections, then revise carefully for clarity, accuracy, and coherence. Multiple revisions improve the quality and reliability of your final report.
Frequently Asked Questions (FAQs)

Q1: What is a psychology case study?
It’s an in-depth investigation of an individual, group, or event to explore behaviors, symptoms, or psychological phenomena.
Q2: Which type of case study should I choose?
It depends on your goal: descriptive, exploratory, explanatory, intrinsic, instrumental, or single vs. collective.
Q3: How many sources should I include?
1–3 sources per page is typical, using credible, peer-reviewed research.
Q4: What formatting style should I use?
Most assignments require APA style, but check your grading rubric.
Q5: Can I combine types in one study?
Yes. Many case studies include descriptive elements while also exploring causes.
Q6: How long should a psychology case study be?
Student case studies usually range from 5–10 pages, depending on complexity.
Q7: How can I ensure success?
Plan thoroughly, stay objective, follow a clear structure, support claims with evidence, avoid mistakes, and proofread carefully.
Final Words
Writing a psychology case study becomes simple when you follow a clear process, choose the right type, prepare carefully, and avoid common pitfalls. Use this guide to plan, structure, and execute your case study with confidence. Remember, the “EssayAssists way” is all about clarity, structure, and academic rigor—ensuring your work is professional, insightful, and high-quality.