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meaning of case study pdf

  • Tamara Paulo Tavares 3  

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A case study is a research design that provides an in-depth description and analysis of a case.

Introduction

A case study is a specific type of research design that provides an in-depth description of a selected case(s) that is defined by space and time (Hancock and Algozzine 2006 ). Case studies are used in a variety of disciplines including medicine, psychology, sociology, anthropology, and business to investigate an issue using multiple sources of information (Creswell 2007 ). The topic under investigation in a case study can vary widely and can encompass an individual (e.g., a patient), a social group (e.g., book club), institutions (e.g., a hospital), or an event (e.g., Holocaust) (Hancock and Algozzine 2006 ). This chapter will provide a brief overview of the characteristics of a case study, the basic structure, and key details used to review the quality of a case study design.

Types and Utility of a Case Study

There are three distinct types of case study designs that can...

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Cassell, C., & Symon, G. (2004). Essential guide to qualitative methods in organizational research . Thousand Oaks/London: Sage.

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Creswell, J. W. (2007). Qualitative inquiry & research design: Choosing among five approaches (2nd ed.). Thousand Oaks: Sage.

Hancock, D. R., & Algozzine, R. (2006). Doing case study research: A practical guide for beginning researchers . New York: Teachers College Press.

Stake, R. E. (1995). The art of case study research . Thousand Oaks: Sage.

Thomas, G. (2016). How to do your case study (2nd ed.). Los Angeles: Sage.

Yin, R. K. (2003a). Applications of case study research (2nd ed.). Thousand Oaks: Sage.

Yin, R. K. (2003b). Case study research: design and methods (Vol. 5, 3rd ed.). Thousand Oaks: Sage.

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Graduate Program in Neuroscience, The Brain and Mind Institute, University of Western Ontario, London, ON, Canada

Tamara Paulo Tavares

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Tavares, T.P. (2018). Case Study. In: Zeigler-Hill, V., Shackelford, T. (eds) Encyclopedia of Personality and Individual Differences. Springer, Cham. https://doi.org/10.1007/978-3-319-28099-8_1283-1

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DOI : https://doi.org/10.1007/978-3-319-28099-8_1283-1

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Methodology

  • What Is a Case Study? | Definition, Examples & Methods

What Is a Case Study? | Definition, Examples & Methods

Published on May 8, 2019 by Shona McCombes . Revised on November 20, 2023.

A case study is a detailed study of a specific subject, such as a person, group, place, event, organization, or phenomenon. Case studies are commonly used in social, educational, clinical, and business research.

A case study research design usually involves qualitative methods , but quantitative methods are sometimes also used. Case studies are good for describing , comparing, evaluating and understanding different aspects of a research problem .

Table of contents

When to do a case study, step 1: select a case, step 2: build a theoretical framework, step 3: collect your data, step 4: describe and analyze the case, other interesting articles.

A case study is an appropriate research design when you want to gain concrete, contextual, in-depth knowledge about a specific real-world subject. It allows you to explore the key characteristics, meanings, and implications of the case.

Case studies are often a good choice in a thesis or dissertation . They keep your project focused and manageable when you don’t have the time or resources to do large-scale research.

You might use just one complex case study where you explore a single subject in depth, or conduct multiple case studies to compare and illuminate different aspects of your research problem.

Case study examples
Research question Case study
What are the ecological effects of wolf reintroduction? Case study of wolf reintroduction in Yellowstone National Park
How do populist politicians use narratives about history to gain support? Case studies of Hungarian prime minister Viktor Orbán and US president Donald Trump
How can teachers implement active learning strategies in mixed-level classrooms? Case study of a local school that promotes active learning
What are the main advantages and disadvantages of wind farms for rural communities? Case studies of three rural wind farm development projects in different parts of the country
How are viral marketing strategies changing the relationship between companies and consumers? Case study of the iPhone X marketing campaign
How do experiences of work in the gig economy differ by gender, race and age? Case studies of Deliveroo and Uber drivers in London

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Once you have developed your problem statement and research questions , you should be ready to choose the specific case that you want to focus on. A good case study should have the potential to:

  • Provide new or unexpected insights into the subject
  • Challenge or complicate existing assumptions and theories
  • Propose practical courses of action to resolve a problem
  • Open up new directions for future research

TipIf your research is more practical in nature and aims to simultaneously investigate an issue as you solve it, consider conducting action research instead.

Unlike quantitative or experimental research , a strong case study does not require a random or representative sample. In fact, case studies often deliberately focus on unusual, neglected, or outlying cases which may shed new light on the research problem.

Example of an outlying case studyIn the 1960s the town of Roseto, Pennsylvania was discovered to have extremely low rates of heart disease compared to the US average. It became an important case study for understanding previously neglected causes of heart disease.

However, you can also choose a more common or representative case to exemplify a particular category, experience or phenomenon.

Example of a representative case studyIn the 1920s, two sociologists used Muncie, Indiana as a case study of a typical American city that supposedly exemplified the changing culture of the US at the time.

While case studies focus more on concrete details than general theories, they should usually have some connection with theory in the field. This way the case study is not just an isolated description, but is integrated into existing knowledge about the topic. It might aim to:

  • Exemplify a theory by showing how it explains the case under investigation
  • Expand on a theory by uncovering new concepts and ideas that need to be incorporated
  • Challenge a theory by exploring an outlier case that doesn’t fit with established assumptions

To ensure that your analysis of the case has a solid academic grounding, you should conduct a literature review of sources related to the topic and develop a theoretical framework . This means identifying key concepts and theories to guide your analysis and interpretation.

There are many different research methods you can use to collect data on your subject. Case studies tend to focus on qualitative data using methods such as interviews , observations , and analysis of primary and secondary sources (e.g., newspaper articles, photographs, official records). Sometimes a case study will also collect quantitative data.

Example of a mixed methods case studyFor a case study of a wind farm development in a rural area, you could collect quantitative data on employment rates and business revenue, collect qualitative data on local people’s perceptions and experiences, and analyze local and national media coverage of the development.

The aim is to gain as thorough an understanding as possible of the case and its context.

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In writing up the case study, you need to bring together all the relevant aspects to give as complete a picture as possible of the subject.

How you report your findings depends on the type of research you are doing. Some case studies are structured like a standard scientific paper or thesis , with separate sections or chapters for the methods , results and discussion .

Others are written in a more narrative style, aiming to explore the case from various angles and analyze its meanings and implications (for example, by using textual analysis or discourse analysis ).

In all cases, though, make sure to give contextual details about the case, connect it back to the literature and theory, and discuss how it fits into wider patterns or debates.

If you want to know more about statistics , methodology , or research bias , make sure to check out some of our other articles with explanations and examples.

  • Normal distribution
  • Degrees of freedom
  • Null hypothesis
  • Discourse analysis
  • Control groups
  • Mixed methods research
  • Non-probability sampling
  • Quantitative research
  • Ecological validity

Research bias

  • Rosenthal effect
  • Implicit bias
  • Cognitive bias
  • Selection bias
  • Negativity bias
  • Status quo bias

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Impacts of distribution data on accurate species modeling: a case study of litsea auriculata (lauraceae).

meaning of case study pdf

1. Introduction

2.1. current distribution pattern of litsea auriculata, 2.2. spatial pattern and driving factors of potential distribution areas of various data, 2.3. pca analyses of different datasets of litsea auriculata under different climatic conditions, 2.4. distribution and conservation status of litsea auriculata under various climatic conditions using different datasets, 3. discussion, 3.1. importance of accurate and complete species distribution records for species distribution modeling, 3.2. potential distribution and conservation assessment based on accurate identification and complete distribution dataset of litsea auriculata, 4. materials and methods, 4.1. data collection and processing, 4.1.1. distribution data of litsea auriculata, 4.1.2. environment variable data, 4.2. potential distribution prediction based on maxent model, 4.3. calculating hotspots in protected areas, 5. conclusions, supplementary materials, author contributions, data availability statement, acknowledgments, conflicts of interest.

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Typebio12345678910111213141516171819
dataset 1 * * * * * *
dataset 2 * ** * *
dataset 3 ** * * * *
dataset 4 ** * * *
dataset 5** * * *
dataset 6 * ** * *
TypePresent2050s2070s
RCP2.6RCP4.5RCP8.5RCP2.6RCP4.5RCP8.5
dataset 10.16%0.70%0.14%0.07%0.39%0.15%0.08%
dataset 20.30%0.29%0.30%0.31%0.92%0.25%0.18%
dataset 30.42%0.92%0.50%0.57%0.91%0.46%0.96%
dataset 40.09%0.48%0.13%0.08%0.12%0.12%0.07%
dataset 50.11%0.16%0.07%0.10%0.11%0.12%0.07%
dataset 60.38%0.67%0.47%0.30%0.53%0.43%0.19%
TypeHotspot Areas (km )Nature Reserves Areas (km )Proportion
dataset 115,400360023.38%
dataset 228,80026009.03%
dataset 340,400530013.18%
dataset 411,500180015.65%
dataset 58600170019.77%
dataset 636,50033009.04%
PeriodHotspot AreasNature Reserves AreasProportion
Present1.540.1723.38%
2050s RCP2.66.730.649.06%
2050s RCP4.51.350.2216.30%
2050s RCP8.50.670.1319.40%
2070s RCP2.63.750.297.73%
2070s RCP4.51.440.2315.97%
2070s RCP8.50.770.1215.58%
DatasetFeaturesSourcesNumbers
dataset1correctspecimens, literature18
dataset2cultivatedspecimens, literature22
dataset3misleadingspecimens, literature22
dataset4specimenspecimens16
dataset5populationliterature9
dataset6allspecimens, literature26
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Tan, C.; Ferguson, D.K.; Yang, Y. Impacts of Distribution Data on Accurate Species Modeling: A Case Study of Litsea auriculata (Lauraceae). Plants 2024 , 13 , 2581. https://doi.org/10.3390/plants13182581

Tan C, Ferguson DK, Yang Y. Impacts of Distribution Data on Accurate Species Modeling: A Case Study of Litsea auriculata (Lauraceae). Plants . 2024; 13(18):2581. https://doi.org/10.3390/plants13182581

Tan, Chao, David Kay Ferguson, and Yong Yang. 2024. "Impacts of Distribution Data on Accurate Species Modeling: A Case Study of Litsea auriculata (Lauraceae)" Plants 13, no. 18: 2581. https://doi.org/10.3390/plants13182581

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  1. (PDF) An Overview of Case Study

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  3. (DOC) Definition of Case Study

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  1. (PDF) The case study as a type of qualitative research

    Abstract. This article presents the case study as a type of qualitative research. Its aim is to give a detailed description of a case study - its definition, some classifications, and several ...

  2. PDF UNDERSTANDING CASE STUDY RESEARCH

    INTRODUCTION. This chapter seeks to provide an overview of case study as a research design (i.e. a way of pursuing a particular research project; the status of case study is considered in more detail in Chapter 3). Its five main sections consider: what we mean by 'case study'. how case study has developed over time.

  3. (PDF) Case Study Research Defined [White Paper]

    A case study is a methodological. research approach used to generate. an in-depth understanding of a. contemporary issue or phenomenon in a. bounded system. Case study research. requires in-depth ...

  4. (PDF) Case Study Research

    This study employed a qualitative case study methodology. The case study method is a research strategy that aims to gain an in-depth understanding of a specific phenomenon by collecting and ...

  5. PDF Kurt Schoch I

    CASE STUDY RESEARCH. urt SchochInthis chapter, I provide an introduction to case. study design. The chapter begins with a definition of case study research and a description of its origins and philosophical. nderpinnings. I share dis-cipline-specific applications of case study methods and describe the appropriate research questions addressed by.

  6. PDF What is a Case Study?

    cussed in section 1.2. After surveying some historical origins of the case study in section 1.3, section 1.4 examines the research question as a methodological point of departure. It determines which general type of design is to be used: an exten-sive design (e.g. a survey) or an intensive one (e.g. a case study). A definition of

  7. Redefining Case Study

    We also propose a more precise and encompassing definition that reconciles various definitions of case study research: case study is a transparadigmatic and transdisciplinary heuristic that involves the careful delineation of the phenomena for which evidence is being collected (event, concept, program, process, etc.).

  8. PDF Case Study Types and Utility of a Case Study Definition

    Introduction. A case study is a specific type of research design that provides an in-depth description of a selected case(s)thatisdefinedbyspaceandtime(Hancock and Algozzine 2006). Case studies are used in a variety of disciplines including medicine, psy- chology, sociology, anthropology, and business to investigate an issue using multiple ...

  9. Case Study Methodology of Qualitative Research: Key Attributes and

    A case study is one of the most commonly used methodologies of social research. This article attempts to look into the various dimensions of a case study research strategy, the different epistemological strands which determine the particular case study type and approach adopted in the field, discusses the factors which can enhance the effectiveness of a case study research, and the debate ...

  10. What Is a Case Study?

    Revised on November 20, 2023. A case study is a detailed study of a specific subject, such as a person, group, place, event, organization, or phenomenon. Case studies are commonly used in social, educational, clinical, and business research. A case study research design usually involves qualitative methods, but quantitative methods are ...

  11. PDF Case Study Design Essentials: Definition, Research Questions, Propositions

    Definition of the Case Study. "An empirical inquiry that investigates a contemporary phenomenon (e.g., a "case") within its real-life context; when the boundaries between phenomenon and context are not clearly evident" (Yin, 2014, p.16) "A case study is an in-depth description and analysis of a bounded system" (Merriam, 2015, p.37).

  12. Understanding Case Study Research: Small-scale Research with Meaning

    Written in an accessible and jargon-free style, this book provides a comprehensive, student-friendly guide to the nature and use of case study research. Whether as part of a more substantial study or as the foundation for a self-contained smaller project, case studies provide viable and valuable alternatives to conducting large-scale research.

  13. PDF Case Study

    demarcation of the unit's boundaries is. Second, the definition stipulates that case studies are "intensive." Thus, case studies comprise more detail, richness, completeness, and variance—that is, depth—for the unit of study than does cross-unit analysis. Third, case studies stress "developmental factors," meaning

  14. (PDF) Qualitative Case Study Methodology: Study Design and

    McMaster University, West Hamilton, Ontario, Canada. Qualitative case study methodology prov ides tools for researchers to study. complex phenomena within their contexts. When the approach is ...

  15. PDF What is a case study?

    Case study is a research methodology, typically seen in social and life sciences. There is no one definition of case study research.1 However, very simply... 'a case study can be defined as an intensive study about a person, a group of people or a unit, which is aimed to generalize over several units'.1 A case study has also been described ...

  16. PDF What Is a Case Study and What Is It Good for?

    A single case (fixed) definition of cases, variables, and outcomes. It study is still a single-shot, a single piece of evidence is the very fuzziness of case studies that grant them lying at the same level of analysis as the proposition. a strong advantage in research at exploratory stages, itself.

  17. What Is a Case, and What Is a Case Study?

    AbstractRésumé. Case study is a common methodology in the social sciences (management, psychology, science of education, political science, sociology). A lot of methodological papers have been dedicated to case study but, paradoxically, the question "what is a case?" has been less studied.

  18. PDF What is Case Study 1 Research?

    Triangulation is an important concept in case study research because an investigation of the phenomenon from different perspectives provides robust foundations for the findings and supports arguments for its contribution to knowledge. Case study research also enables a phenomenon to be studied over a period of time, that is, a longitudinal study.

  19. (PDF) What is a case study?

    This study also follows a case study methodology. According to Heale and Twycross (2017), case study is commonly use in social and humanities field. It can be defined as a study about a person or ...

  20. PDF DEFINING THE CASE STUDY

    Five elements of a research design: Identify data to be collected— define: 1. question: case studies most useful for answering how, why. 2. propositions, if any to help problematize your question (e.g., organizations collaborate because they derive mutual benefit). 3. units of analysis (a neighborhood or a small group; a new technology or an ...

  21. Case Study Method: A Step-by-Step Guide for Business Researchers

    Case study reporting is as important as empirical material collection and interpretation. The quality of a case study does not only depend on the empirical material collection and analysis but also on its reporting (Denzin & Lincoln, 1998). A sound report structure, along with "story-like" writing is crucial to case study reporting.

  22. Impacts of Distribution Data on Accurate Species Modeling: A Case Study

    Global warming has caused many species to become endangered or even extinct. Describing and predicting how species will respond to global warming is one of the hotspots of biodiversity research. Species distribution models predict the potential distribution of species based on species occurrence data. However, the impact of the accuracy of the distribution data on the prediction results is ...

  23. (PDF) Case Study Method: A Step-by-Step Guide for ...

    1. Abstract. Qualitative case study methodology enables researchers to conduct an in-depth exploration of intricate phenomena within some. specific context. By keeping in mind research students ...

  24. (PDF) An Overview of Case Study

    Case study based on the definition given by Dr. Kenneth Harling, states that it is a holistic inquiry that explores modern or present-day phenomena within its natural setting (Harling, 2002). A ...