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Teaching History Through the Case Method

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T he case method is typically synonymous with business school curriculum. Through active case discussion, students put themselves in the proverbial shoes of a case protagonist, often a manager or leader of a company or organization facing a difficult business challenge. Students apply critical thinking skills to work through complicated problems and process contending points of view, then engage with their classmates in developing a solution together. This intellectual energy is the pedagogical “magic” instructors strive for.

Perhaps a lesser-known power of the case method, however, is in its applicability across a variety of topics and student levels. Take, for instance, history, government, civics, and democracy—topics that feel particularly pertinent given the roller-coaster US election and other polarizing political events around the world.

In an effort to bring these important topics, particularly American history, to life, historian David Moss, the Paul Whiton Cherington Professor of Business Administration at Harvard Business School (HBS), has taken the case method’s magic from the business school to the high school. In 2015, Moss launched a pilot program in 11 public, charter, and private high schools across the United States. He provided 23 history and civics teachers with historical cases that showcase the foundations of US democracy—as well as worksheets, assignment questions, and teaching plans. He then made the cases available for free to high school students to encourage case teaching among this group.

The goal of this program, called the Case Method Project , is to demonstrate that teaching with cases can strengthen high school and college education as well as ensure “a more exciting, relevant, and effective experience for students and teachers across a range of subjects,” according to its site.

“The results [of the Case Method Project] have been incredibly positive, especially in terms of strengthening students’ critical thinking, their retention and understanding of course material, and their civic interest and engagement.” David Moss

Since its initial launch, the program has grown considerably. Today Moss is working with over 350 teachers in more than 250 high schools across 45 states and the District of Columbia. “We’ve now reached well over 30,000 students as part of the initial pilot,” he says. “The project has grown considerably over the last several years, and the results have been incredibly positive, especially in terms of strengthening students’ critical thinking, their retention and understanding of course material, and their civic interest and engagement. Because of this success, we’re aiming to reach much larger numbers of teachers and students going forward through the new Case Method Institute for Education and Democracy, which started up this summer.”

The case method has proven remarkably effective in teaching high schoolers the critical thinking skills that the world’s future leaders so greatly need. Here, to help educators see the different ways and venues in which case teaching can be used, we showcase the collection of cases Moss authored and provided in support of this effort.

Democracy Cases to Use in Class

Here is a list of Moss’s cases , which you can use to engage students in conversations about US history and democracy. We hope you find these cases helpful.

James Madison, the ‘Federal Negative,’ and the Making of the U.S. Constitution (1787) and as a supplement: In Detail: Debt and Paper Money in Rhode Island (1786)

Battle Over a Bank: Defining the Limits of Federal Power Under a New Constitution (1791)

Democracy, Sovereignty, and the Struggle over Cherokee Removal (1836)

Banking and Politics in Antebellum New York (1838)

Property, Suffrage, and the "Right of Revolution" in Rhode Island, 1842

Debt and Democracy: The New York Constitutional Convention of 1846

The Struggle Over Public Education in Early America (1851)

A Nation Divided: The United States and the Challenge of Secession (1861)

Reconstruction A: The Crisis of 1877

Reconstruction B: Jury Rights in Virginia, 1877-1880

An Australian Ballot for California? (1891)

Labor, Capital, and Government: The Anthracite Coal Strike of 1902

The Jungle and the Debate over Federal Meat Inspection in 1906

The Battle Over the Initiative and Referendum in Massachusetts (1918)

Regulating Radio in the Age of Broadcasting (1927)

The Pecora Hearings (1932-34)

Martin Luther King and the Struggle for Black Voting Rights (1965)

Democracy and Women’s Rights in America: The Fight over the ERA (1982)

Manufacturing Constituencies: Race and Redistricting in North Carolina, 1993

Leadership and Independence at the Federal Reserve (2009)

Citizens United and Corporate Speech (2010)

Do you use the case method to spark discussion and debate on topics outside of business disciplines? Let us know .

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In This Section

• Reflective Essay
• Project Summary

How to Use This Case Study: A Guide for Students and Teachers

• Migration and the Twentieth-Century South: An Overview
• Study Questions
• Population Statistics
• Agricultural Statistics
• Images of Farming
• Business, Industry, and Government
• Annotated Bibliography of Primary Sources
• Acknowledgements

This case study is intended to help students develop a better understanding of why and how migration takes place and what the impact of migration is on the places people migrate to and the places people leave. More specifically, it is designed to help students develop a better understanding of migration in the twentieth century American South and of the role of migration in Southern history. The case study is also intended as an exercise in the use of primary sources and how the writing of good history depends on finding and carefully interpreting primary sources. The audience for this case study is college history students, although advanced high school students are more than capable of making use of it also.

Three North Carolina counties located on the Virginia border will be examined during the period from 1940-1999. A collection of primary sources* has been assembled that consists of on-site sources and links to primary sources at other web sites. These sources include interviews, statistics drawn from U.S. Census records, and photographs. Secondary sources** are also available in the form of a brief overview of migration on-site and links to a number of other sites with more extensive studies of migration and economic and social change in the South. A sizeable body of primary and secondary source material is thus available to students. In fact, there is more information on this site and at the web sites linked to this site than the typical student has the time or interest to read through. Students must, therefore, be selective with their reading both as to the sites they choose to explore and how closely they read particular texts. This too is what good historians do and indeed what all of us must learn to do in order to manage the tremendous amounts of information that come our way in this "Age of Information."

The study questions are the key to this case study; they are really a navigational aid that enables students to steer through the primary sources. Ideally, the answers derived from digging through the assembled primary sources will make the general analysis in the overview more meaningful and will flesh out with details what were before only seemingly vague generalizations. We hope students may also get a better handle on the "why" of migration by studying a small area so intensely. Questions in each unit in the study guide are organized from simple questions requiring simple answers to questions that require complex, analytical answers. The idea here is that the exercise will help students work through the step-by-step process of writing an historical analysis, a process that often leaves students sitting mystified behind piles of books and stacks of note cards. Teachers may assign a group of questions to students or, for a more extensive project, all of the questions. Teachers might also assign groups of questions to different discussion groups in a class and have each group develop an oral presentation based on their findings.

Where to begin? Begin with the " Overview ." Make your decision at that point as to whether you will to read some of the other secondary sources linked to the "Overview." Then move to the " Study Questions ." They will guide you to particular primary sources on and off thisweb site.

*Primary sources are firsthand accounts of a period or event in history by someone who was there or who talked to someone who was there. Government documents, pictures, newspaper accounts, diaries, government statistics, memoirs and interviews are all examples of primary sources. These sources need not be concerned with "major" events; they might record the annual harvest in a county, an industrial fire, a corn shucking, or the national divorce rate.

**Secondary sources are what historians do with primary sources. A secondary source is thus an analysis of a topic or issue that employs primary sources and other secondary sources. Is it possible to create a secondary source solely by relying on other secondary sources? The answer is "yes" but historians are suspicious of the validity of historical observations based solely on research in the secondary sources just as a farmer might be suspicious of anyone who claims to farm but never has dirty hands. While students may have no interest in writing history, most historians feel students should at least be aware of the connection between primary and secondary sources. This awareness, we believe, enhances the ability of students to critically assess secondary source material.

A Better Way to Teach History

One professor is borrowing a method from Harvard Business School to engage students and inspire better decision-making skills.

In a spacious classroom in Aldrich Hall on the Harvard Business School campus, 100 students are passionately discussing a case called “Battle Over a Bank.” But these aren’t MBA students deliberating over how much the government should regulate the financial sector. This group of mostly undergraduates, guided by the award-winning Harvard Business School professor David Moss, is diving into the fierce 1791 debate over whether the Constitution could be interpreted to allow the fledgling U.S. government the power to form a bank at all.

This class, “History of American Democracy,” is no pedestrian historical survey course. It uses the case method—the business school’s signature teaching technique—to immerse undergraduates (as well as a limited number of HBS students) in critical episodes in the development of American democracy.

The field of history is often dismissed as dull, but educators like Moss are experimenting with innovative teaching strategies to teach history in a way that is effective, exciting, and productive. There’s “Reading like a Historian,” based at Stanford and aimed at the K-12 level, which explicitly hones the ability to take primary sources and interpret, construct meaning, recognize competing narratives, and contextualize as a historian would. “Reacting to the Past,” started at Barnard College by Mark Carnes, is a student-centered college curriculum consisting entirely of role-playing games. “Facing History and Ourselves,” which grew out of a course focused on the Holocaust, uses a multi-pronged approach to get young people in grades six through 12 thinking about the ramifications of genocide and mass violence as a way of reflecting on moral choices they themselves face in their own lives.

History education generates heated controversy among educators and policymakers. There is a long history of tension over which historical facts children should be learning in school and when, whether a particular set of proposed standards is too patriotic, too multicultural, or whitewashes uncomfortable truths. Controversies over the content and nature of what children are learning often fall along political lines: The Michigan State Board of Education recently delayed voting on its new social-studies standards because of a controversy over whether liberal bias was behind proposals to include civil rights in the curriculum before high school, while in Texas, critics repeatedly accuse textbook authors of reflecting conservative political views in their coverage of topics such as religion or slavery.

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Perhaps the most major current-day divide falls along the lines of content versus skills: Should history classes be about acquiring facts and information, or should they emphasize historical thinking abilities and processes? And if the latter, which skills and how might they best be taught? While a positivist view of history—the 19th-century notion that history was akin to a science, and that the accumulation of historical facts would eventually lead to an objective understanding of events—fell out of favor long ago, this idea seems to remain the operative assumption behind traditional history curricula that emphasize content, chronology, and comprehensiveness.

According to Bob Bain, a professor of history and education at the University of Michigan and faculty lead on the Big History Project , the debate over factual content versus skills—one that has actually waxed and waned ever since history emerged as a field of study a century and a half ago—pertains to a false dichotomy. “You can’t do historical thinking without facts, and you can’t acquire stuff without some sort of historical thinking,” he points out. A good history teacher can teach both effectively, agrees Elaine Carey, a history professor at St. John’s University and the former vice president of the teaching division of the American Historical Association. She emphasizes that teachers can teach “skills through content,” and that you “can’t understand historical continuity if you don’t have historical knowledge.”

The case method goes beyond historical skills and factual content; it aims to hone decision-making skills. Each case is a concentrated story about a specific episode in history. Students are asked what they would have decided had they been, say, an advocate arguing for compulsory public education in 1851, or Theodore Roosevelt deciding whether to intervene in a dispute between labor and industry in 1901. It’s not until after they have fully discussed the case that the historical outcome is revealed to them. (Class participation, even though it is mandatory, is enthusiastic: “We can have 40 hands in the air at any given moment,” Moss tells me.)

Few students think about history that way, according to Moss. Instead, they’re often taught that “what happened is what happened.” Unlike with many history courses, where students look back at historical events students in Moss’s course “play history forward. If you were in that place as that voter, that labor leader, or that congressperson, what decision would you have made?”

One of the reasons American children often appear to struggle in history, Bain says, is because their knowledge is primarily assessed through multiple-choice tests. Multiple-choice assessment, by nature, often privileges factual content over historical thinking. “If you’re testing historical content out of context, that might explain why they don’t do so well,” Bain says. He advocates embracing the use of narrative—even if that narrative is flawed or one-sided. “The grand narrative is pejorative to many in the historical profession—people say that it tries to inculcate a particular viewpoint in kids. But having a big picture or story is cognitively critical to historical knowledge.”

Similarly, history textbooks appear omniscient and objective, and tend to gloss over competing narratives. But educators say that understanding whose narrative is being told helps students to engage with it; even if it is wrong or they disagree with it, the narrative provides context and a more effective way to learn and remember. “The argument I make all the time is, it’s like if I were to ask someone to assemble a 1,000-piece jigsaw puzzle without the box-top picture of it. You could of course eventually put it together but the effort to match shapes and colors on each piece would be monumental, and you’d likely give up quite quickly. Such is what happens to many kids in school.”

It’s difficult to track down research corroborating the academic benefits of the case method, but anecdotal evidence speaks to its power. Moss tells me he has observed the results of story-based teaching in his classroom. “People remember cases incredibly well—and often at a level of detail that’s almost shocking. Stories stick in the mind, and when you learn history with a focus on particular stories it’s much easier to remember the pieces around them.”

David Kaufman, a student who took the course last year, says that discussing history through a series of cases allowed the students to “focus a lot more on the process than on, say, the actual legislative result, which I think was much richer.” It is well known that stories aid learning because of how memory is structured. The cognitive psychologist Jerome Bruner wrote of two modes of knowing: paradigmatic and narrative; with the latter, attention and emotion influence the strength of a memory. Stories activate emotion, which helps students stay engaged and remember. They also feed the human need to fit things into a coherent structure in order to make meaning of them.

All this makes the case method promising for high school, too, and some of Moss’s cases were indeed adopted for use by history teachers at public and private high schools in a pilot program beginning early last year. One of the participants, Eleanor Cannon, a history teacher at St. John’s School in Houston, expressed astonishment at how students who never thought of themselves as history types before grew to love history. “I’ve never had this experience as a teacher before, and it’s explicitly due to the case method—it’s a game changer.” Rather than merely know which decisions historical figures made, her students now understood why. Facts she had taught multiple times, such as that the Constitution was not handed down intact by the founders but emerged from a protracted period of intense tumult, debate, and compromise, made visceral sense now after students read and discussed a case on James Madison and the making of the Constitution. (As one student told Cannon, “I didn’t realize how much they argued!”)

Moss compares immersion in case after case to batting practice that helps train judgment. The idea is to help students develop an instinct for how to respond even to problems—whether they be furor over same sex marriage or a massive financial crisis—that feel unprecedented. Through sheer repetitive exposure to problems and problem-solving, students learn the art of decision-making—and develop better judgment—in “much the same way as you might learn a language. It’s not an algorithm, it’s the development of an instinct—at least in part,” says Moss. They also provide historical perspective when looking at problems today.

Take the current debate over immigration. Although none of Moss’s cases focuses principally on immigration, themes of exclusion/inclusion are woven throughout, potentially reminding readers that unpleasant historical episodes have happened again and again. A group of people will become accepted into the fold, only to see the fire turned on another one; who the “threatening” outgroup is always changing. “You can see it as deeply disturbing,” Moss says, “that there always seemed to be an outgroup that some Americans looked down upon, but you could also see that there is an ongoing process of expanding tolerance, over time. This doesn’t create an excuse for bigotry—absolutely not—but it does give you a little hope that when there is bigotry it’s not necessarily permanent; there is a chance to get past it, group by group, with the result eventually being a broader, more tolerant society.”

One of Moss’s arguments about democracy is that it is far more complex than people tend to realize—that “it is not a machine built to specification.” Instead, democracy can be understood as a living organism that thrives on productive tension, engagement, and change. Without movement, it would die. Moss mentions the de facto national motto first suggested in 1776 by Benjamin Franklin: E Pluribus Unum . “Out of many, one.” Franklin saw difference that achieves common purpose as a core strength of the country. If one were to apply this analogy to history, ongoing debates about how to teach it only enhance the field—as long as educators remain committed to the same shared goal of helping students understand the past in order to face the future. “The best ideas come out of tension, out of disagreeing,” Moss tells his students. “Tension is what ensures the best ideas win out.”

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The History of the Case Study at Harvard Business School

• 28 Feb 2017

Many first-time HBS Online participants are surprised to learn that, often, the professor is not at the center of their learning experience. Instead of long faculty lectures, the HBS Online learning model centers on smaller, more digestible pieces of content that require participants to interact with each other, test concepts, and learn from real-world examples.

Often, the professor fades into the background and lets the focus shift to interviews with executives, industry leaders, and small business owners. Some students might be left thinking, "Wait, where did that professor go? Why am I learning about a grocery store in Harvard Square?"

In the words of The Hitchhiker's Guide to the Galaxy , “Don’t panic.” These interviews, or cases, feature leaders at companies of all sizes and provide valuable examples of business concepts in action. This case study method forms the backbone of the Harvard Business School curriculum.

Back in the 1920s, HBS professors decided to develop and experiment with innovative and unique business instruction methods. As the first school in the world to design a signature, distinctive program in business, later to be called the MBA, there was a need for a teaching method that would benefit this novel approach.

HBS professors selected and took a few pages to summarize recent events, momentous challenges, strategic planning, and important decisions undertaken by major companies and organizations. The idea was, and remains to this day, that through direct contact with a real-world case, students will think independently about those facts, discuss and compare their perspectives and findings with their peers, and eventually discover a new concept on their own.

Central to the case method is the idea that students are not provided the "answer" or resolution to the problem at hand. Instead, just like a board member, CEO, or manager, the student is forced to analyze a situation and find solutions without full knowledge of all methods and facts. Without excluding more traditional aspects, such as interaction with professors and textbooks, the case method provides the student with the opportunity to think and act like managers.

Since 1924, the case method has been the most widely applied and successful teaching instrument to come out of HBS, and it is used today in almost all MBA and Executive Education courses there, as well as in hundreds of other top business schools around the world. The application of the case method is so extensive that HBS students will often choose to rely on cases, instead of textbooks or other material, for their research. Large corporations use the case method as well to approach their own challenges, while competing universities create their own versions for their students.

This is what the case method does—it puts students straight into the game, and ensures they acquire not just skills and abstract knowledge, but also a solid understanding of the outside world.

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• 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.

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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.

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
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Research bias

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

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Case Method Project

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The Case Method Project is an initiative formed to achieve two goals:

• Bring case method teaching to high schools and colleges
• Use this methodology to deepen students’ understanding of American democracy

Based on the highly successful experience of Harvard Business School and other graduate and professional programs that use case-based teaching, we believe the case method can be employed to strengthen high school and college education as well, ensuring a more exciting, relevant, and effective experience for students and teachers across a range of subjects. We also believe the case method can be especially effective at engaging students with topics in history and democracy and that it presents a unique opportunity to help reverse the broad decline in civic education – and civic engagement – in the United States.

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• Case Study | Definition, Examples & Methods

Case Study | Definition, Examples & Methods

Published on 5 May 2022 by Shona McCombes . Revised on 30 January 2023.

A case study is a detailed study of a specific subject, such as a person, group, place, event, organisation, 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 analyse the case.

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.

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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

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.

If you find yourself aiming to simultaneously investigate and solve an issue, consider conducting action research . As its name suggests, action research conducts research and takes action at the same time, and is highly iterative and flexible. 

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

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 .

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

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 analyse 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.

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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.

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• 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."

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Case Study – Methods, Examples and Guide

Table of Contents

A case study is a research method that involves an in-depth examination and analysis of a particular phenomenon or case, such as an individual, organization, community, event, or situation.

It is a qualitative research approach that aims to provide a detailed and comprehensive understanding of the case being studied. Case studies typically involve multiple sources of data, including interviews, observations, documents, and artifacts, which are analyzed using various techniques, such as content analysis, thematic analysis, and grounded theory. The findings of a case study are often used to develop theories, inform policy or practice, or generate new research questions.

Types of Case Study

Types and Methods of Case Study are as follows:

Single-Case Study

A single-case study is an in-depth analysis of a single case. This type of case study is useful when the researcher wants to understand a specific phenomenon in detail.

For Example , A researcher might conduct a single-case study on a particular individual to understand their experiences with a particular health condition or a specific organization to explore their management practices. The researcher collects data from multiple sources, such as interviews, observations, and documents, and uses various techniques to analyze the data, such as content analysis or thematic analysis. The findings of a single-case study are often used to generate new research questions, develop theories, or inform policy or practice.

Multiple-Case Study

A multiple-case study involves the analysis of several cases that are similar in nature. This type of case study is useful when the researcher wants to identify similarities and differences between the cases.

For Example, a researcher might conduct a multiple-case study on several companies to explore the factors that contribute to their success or failure. The researcher collects data from each case, compares and contrasts the findings, and uses various techniques to analyze the data, such as comparative analysis or pattern-matching. The findings of a multiple-case study can be used to develop theories, inform policy or practice, or generate new research questions.

Exploratory Case Study

An exploratory case study is used to explore a new or understudied phenomenon. This type of case study is useful when the researcher wants to generate hypotheses or theories about the phenomenon.

For Example, a researcher might conduct an exploratory case study on a new technology to understand its potential impact on society. The researcher collects data from multiple sources, such as interviews, observations, and documents, and uses various techniques to analyze the data, such as grounded theory or content analysis. The findings of an exploratory case study can be used to generate new research questions, develop theories, or inform policy or practice.

Descriptive Case Study

A descriptive case study is used to describe a particular phenomenon in detail. This type of case study is useful when the researcher wants to provide a comprehensive account of the phenomenon.

For Example, a researcher might conduct a descriptive case study on a particular community to understand its social and economic characteristics. The researcher collects data from multiple sources, such as interviews, observations, and documents, and uses various techniques to analyze the data, such as content analysis or thematic analysis. The findings of a descriptive case study can be used to inform policy or practice or generate new research questions.

Instrumental Case Study

An instrumental case study is used to understand a particular phenomenon that is instrumental in achieving a particular goal. This type of case study is useful when the researcher wants to understand the role of the phenomenon in achieving the goal.

For Example, a researcher might conduct an instrumental case study on a particular policy to understand its impact on achieving a particular goal, such as reducing poverty. The researcher collects data from multiple sources, such as interviews, observations, and documents, and uses various techniques to analyze the data, such as content analysis or thematic analysis. The findings of an instrumental case study can be used to inform policy or practice or generate new research questions.

Case Study Data Collection Methods

Here are some common data collection methods for case studies:

Interviews involve asking questions to individuals who have knowledge or experience relevant to the case study. Interviews can be structured (where the same questions are asked to all participants) or unstructured (where the interviewer follows up on the responses with further questions). Interviews can be conducted in person, over the phone, or through video conferencing.

Observations

Observations involve watching and recording the behavior and activities of individuals or groups relevant to the case study. Observations can be participant (where the researcher actively participates in the activities) or non-participant (where the researcher observes from a distance). Observations can be recorded using notes, audio or video recordings, or photographs.

Documents can be used as a source of information for case studies. Documents can include reports, memos, emails, letters, and other written materials related to the case study. Documents can be collected from the case study participants or from public sources.

Surveys involve asking a set of questions to a sample of individuals relevant to the case study. Surveys can be administered in person, over the phone, through mail or email, or online. Surveys can be used to gather information on attitudes, opinions, or behaviors related to the case study.

Artifacts are physical objects relevant to the case study. Artifacts can include tools, equipment, products, or other objects that provide insights into the case study phenomenon.

How to conduct Case Study Research

Conducting a case study research involves several steps that need to be followed to ensure the quality and rigor of the study. Here are the steps to conduct case study research:

• Define the research questions: The first step in conducting a case study research is to define the research questions. The research questions should be specific, measurable, and relevant to the case study phenomenon under investigation.
• Select the case: The next step is to select the case or cases to be studied. The case should be relevant to the research questions and should provide rich and diverse data that can be used to answer the research questions.
• Collect data: Data can be collected using various methods, such as interviews, observations, documents, surveys, and artifacts. The data collection method should be selected based on the research questions and the nature of the case study phenomenon.
• Analyze the data: The data collected from the case study should be analyzed using various techniques, such as content analysis, thematic analysis, or grounded theory. The analysis should be guided by the research questions and should aim to provide insights and conclusions relevant to the research questions.
• Draw conclusions: The conclusions drawn from the case study should be based on the data analysis and should be relevant to the research questions. The conclusions should be supported by evidence and should be clearly stated.
• Validate the findings: The findings of the case study should be validated by reviewing the data and the analysis with participants or other experts in the field. This helps to ensure the validity and reliability of the findings.
• Write the report: The final step is to write the report of the case study research. The report should provide a clear description of the case study phenomenon, the research questions, the data collection methods, the data analysis, the findings, and the conclusions. The report should be written in a clear and concise manner and should follow the guidelines for academic writing.

Examples of Case Study

Here are some examples of case study research:

• The Hawthorne Studies : Conducted between 1924 and 1932, the Hawthorne Studies were a series of case studies conducted by Elton Mayo and his colleagues to examine the impact of work environment on employee productivity. The studies were conducted at the Hawthorne Works plant of the Western Electric Company in Chicago and included interviews, observations, and experiments.
• The Stanford Prison Experiment: Conducted in 1971, the Stanford Prison Experiment was a case study conducted by Philip Zimbardo to examine the psychological effects of power and authority. The study involved simulating a prison environment and assigning participants to the role of guards or prisoners. The study was controversial due to the ethical issues it raised.
• The Challenger Disaster: The Challenger Disaster was a case study conducted to examine the causes of the Space Shuttle Challenger explosion in 1986. The study included interviews, observations, and analysis of data to identify the technical, organizational, and cultural factors that contributed to the disaster.
• The Enron Scandal: The Enron Scandal was a case study conducted to examine the causes of the Enron Corporation’s bankruptcy in 2001. The study included interviews, analysis of financial data, and review of documents to identify the accounting practices, corporate culture, and ethical issues that led to the company’s downfall.
• The Fukushima Nuclear Disaster : The Fukushima Nuclear Disaster was a case study conducted to examine the causes of the nuclear accident that occurred at the Fukushima Daiichi Nuclear Power Plant in Japan in 2011. The study included interviews, analysis of data, and review of documents to identify the technical, organizational, and cultural factors that contributed to the disaster.

Application of Case Study

Case studies have a wide range of applications across various fields and industries. Here are some examples:

Business and Management

Case studies are widely used in business and management to examine real-life situations and develop problem-solving skills. Case studies can help students and professionals to develop a deep understanding of business concepts, theories, and best practices.

Case studies are used in healthcare to examine patient care, treatment options, and outcomes. Case studies can help healthcare professionals to develop critical thinking skills, diagnose complex medical conditions, and develop effective treatment plans.

Case studies are used in education to examine teaching and learning practices. Case studies can help educators to develop effective teaching strategies, evaluate student progress, and identify areas for improvement.

Social Sciences

Case studies are widely used in social sciences to examine human behavior, social phenomena, and cultural practices. Case studies can help researchers to develop theories, test hypotheses, and gain insights into complex social issues.

Law and Ethics

Case studies are used in law and ethics to examine legal and ethical dilemmas. Case studies can help lawyers, policymakers, and ethical professionals to develop critical thinking skills, analyze complex cases, and make informed decisions.

Purpose of Case Study

The purpose of a case study is to provide a detailed analysis of a specific phenomenon, issue, or problem in its real-life context. A case study is a qualitative research method that involves the in-depth exploration and analysis of a particular case, which can be an individual, group, organization, event, or community.

The primary purpose of a case study is to generate a comprehensive and nuanced understanding of the case, including its history, context, and dynamics. Case studies can help researchers to identify and examine the underlying factors, processes, and mechanisms that contribute to the case and its outcomes. This can help to develop a more accurate and detailed understanding of the case, which can inform future research, practice, or policy.

Case studies can also serve other purposes, including:

• Illustrating a theory or concept: Case studies can be used to illustrate and explain theoretical concepts and frameworks, providing concrete examples of how they can be applied in real-life situations.
• Developing hypotheses: Case studies can help to generate hypotheses about the causal relationships between different factors and outcomes, which can be tested through further research.
• Providing insight into complex issues: Case studies can provide insights into complex and multifaceted issues, which may be difficult to understand through other research methods.
• Informing practice or policy: Case studies can be used to inform practice or policy by identifying best practices, lessons learned, or areas for improvement.

Advantages of Case Study Research

There are several advantages of case study research, including:

• In-depth exploration: Case study research allows for a detailed exploration and analysis of a specific phenomenon, issue, or problem in its real-life context. This can provide a comprehensive understanding of the case and its dynamics, which may not be possible through other research methods.
• Rich data: Case study research can generate rich and detailed data, including qualitative data such as interviews, observations, and documents. This can provide a nuanced understanding of the case and its complexity.
• Holistic perspective: Case study research allows for a holistic perspective of the case, taking into account the various factors, processes, and mechanisms that contribute to the case and its outcomes. This can help to develop a more accurate and comprehensive understanding of the case.
• Theory development: Case study research can help to develop and refine theories and concepts by providing empirical evidence and concrete examples of how they can be applied in real-life situations.
• Practical application: Case study research can inform practice or policy by identifying best practices, lessons learned, or areas for improvement.
• Contextualization: Case study research takes into account the specific context in which the case is situated, which can help to understand how the case is influenced by the social, cultural, and historical factors of its environment.

Limitations of Case Study Research

There are several limitations of case study research, including:

• Limited generalizability : Case studies are typically focused on a single case or a small number of cases, which limits the generalizability of the findings. The unique characteristics of the case may not be applicable to other contexts or populations, which may limit the external validity of the research.
• Biased sampling: Case studies may rely on purposive or convenience sampling, which can introduce bias into the sample selection process. This may limit the representativeness of the sample and the generalizability of the findings.
• Subjectivity: Case studies rely on the interpretation of the researcher, which can introduce subjectivity into the analysis. The researcher’s own biases, assumptions, and perspectives may influence the findings, which may limit the objectivity of the research.
• Limited control: Case studies are typically conducted in naturalistic settings, which limits the control that the researcher has over the environment and the variables being studied. This may limit the ability to establish causal relationships between variables.
• Time-consuming: Case studies can be time-consuming to conduct, as they typically involve a detailed exploration and analysis of a specific case. This may limit the feasibility of conducting multiple case studies or conducting case studies in a timely manner.
• Resource-intensive: Case studies may require significant resources, including time, funding, and expertise. This may limit the ability of researchers to conduct case studies in resource-constrained settings.

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Cleveland Clinic, the second-ranked hospital in the world, approached its 100th anniversary with ambitious goals in mind. The academic and multispecialty healthcare system, with more than 72,000 caregivers and 21 hospitals worldwide, wanted to leverage the milestone to advance its enterprise strategy and narrative, celebrate caregivers and build pride across stakeholder groups.

Cleveland Clinic had an obvious place to begin developing a strategic theme for the centennial celebration—its history of innovation and research. The organization pioneered a team-based, patient-centered approach to care, leveraging the experience of its founding doctors, who worked as a unit during World War I. This created a culture of innovation that has led to accomplishments such as the discovery of serotonin as a neurotransmitter and the world’s first reported coronary artery bypass surgery. Like many industry-advancing institutions, Cleveland Clinic proceeds with its eyes fixed on the future.

But the key to every anniversary is finding a way to connect an organization’s past to its future , and therein lay the challenge: taking Cleveland Clinic’s unique history and heritage and making it relevant and invigorating to all that lies ahead for the organization. While Cleveland Clinic’s leadership valued its heritage, aligning the organization’s past with its forward-looking, contemporary, modern brand was going to take a new perspective.

Ultimately, throughout the nearly three-year engagement, History Factory provided Cleveland Clinic with the positioning, resources, stories and tactics necessary to achieve its goal of a centennial focused on its future and inspired by its past.

Using Cleveland Clinic’s Experience To Develop a Future-Forward Perspective

Based on its history of groundbreaking advancements , Cleveland Clinic has consistently proven itself to be at the vanguard of modern medicine. Everything the organization is working on today—including robotics, telemedicine and more—will be key to the future of healthcare.

Delving into Cleveland Clinic’s history of innovation helped us contextualize the organization as it exists today, understand the inspiring role it will continue to play in the future, and develop a centennial theme incorporating all of these elements: “The Future of Healthcare Since 1921.”

We created storylines and a content bank—including stories, copy, images and videos—to support this theme and form the basis for a number of activations, including an anniversary website and a state-of-the-art interactive storytelling exhibit.

After crafting the strategy that drove Cleveland Clinic’s global campaign, we worked in partnership with its many talented internal and external partners, hosting an agency summit to share the anniversary content and framework and advising on anniversary initiatives.

History Factory consulted with Cleveland Clinic on how to leverage the anniversary to drive the organization forward at the highest institutional level.

“The one thing we did learn through History Factory is really a key takeaway. We needed to take advantage of our anniversary to make changes that we felt were necessary within our organization. … [A]t the beginning of the year, our CEO rolled out an updated and new mission statement, and we took advantage of that to really ground everyone around our centennial.” Mary Beth Pate, former Executive Director, Enterprise Marketing & Philanthropy Communications

Other highlights from Cleveland Clinic’s centennial campaign included a docuseries with CNN’s Courageous Studios, a new edition of its history book, “To Act as a Unit,” and the culmination of its 10-year centennial donation campaign.

A Milestone That Continues To Fuel the Future of Healthcare

While its anniversary took place in the midst of a global pandemic, Cleveland Clinic was still able to activate its plan in multiple ways.

“We were really grounded in our goal that we established upfront, and that was to globally leverage our 100th anniversary to advance our enterprise strategy and our care priorities.” Mary Beth Pate

Ultimately, History Factory’s work gave Cleveland Clinic stakeholders the tools and resources to turn the organization’s centennial goal into a reality. The results speak for themselves:

• More than $2.58 billion in donations to the centennial donation campaign
• More than 2 billion impressions worldwide from the centennial content
• A new mission statement for the organization

Additionally, the communications and marketing teams at Cleveland Clinic continue to draw on the robust content bank we crafted for material to use in internal and external communications.

Two exhibits that History Factory developed and installed also remain as lasting physical legacies of the anniversary. The first, a reconceptualization of an exhibit area in Founders Hall, connects the founders’ legacy with the future of healthcare.

The second, an exhibit in the Miller Family Pavilion on the Cleveland Clinic main campus, draws visitors in with imagery of the forest where Cleveland Clinic’s founders strolled during World War I and first visualized the hospital and its style of care. The exhibit also allows visitors to immerse themselves in a collection of the organization’s stories, using touchless technology to highlight content. In keeping with Cleveland Clinic’s emphasis on the healing power of art, the exhibit combines the organization’s storied history with a modern, contemporary aesthetic aimed at engaging visitors in a way that is consistent with the many art installations throughout the campus.

Our work in partnership with Cleveland Clinic will continue to deliver on the promise of leveraging the organization’s heritage to drive its new mission and create the future of healthcare.

“One of our goals is to use the centennial really to revive an active dialogue, the active memory of our history, and then keep that current and in front of our caregivers going forward.” Paul Matsen, Chief Marketing and Communications Officer

Want a future-facing anniversary campaign like the one we produced for Cleveland Clinic, one of the world’s top healthcare innovators? Drop us a line .

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Top 40 Most Popular Case Studies of 2021

Two cases about Hertz claimed top spots in 2021's Top 40 Most Popular Case Studies

Two cases on the uses of debt and equity at Hertz claimed top spots in the CRDT’s (Case Research and Development Team) 2021 top 40 review of cases.

Hertz (A) took the top spot. The case details the financial structure of the rental car company through the end of 2019. Hertz (B), which ranked third in CRDT’s list, describes the company’s struggles during the early part of the COVID pandemic and its eventual need to enter Chapter 11 bankruptcy. 

The success of the Hertz cases was unprecedented for the top 40 list. Usually, cases take a number of years to gain popularity, but the Hertz cases claimed top spots in their first year of release. Hertz (A) also became the first ‘cooked’ case to top the annual review, as all of the other winners had been web-based ‘raw’ cases.

Besides introducing students to the complicated financing required to maintain an enormous fleet of cars, the Hertz cases also expanded the diversity of case protagonists. Kathyrn Marinello was the CEO of Hertz during this period and the CFO, Jamere Jackson is black.

Sandwiched between the two Hertz cases, Coffee 2016, a perennial best seller, finished second. “Glory, Glory, Man United!” a case about an English football team’s IPO made a surprise move to number four.  Cases on search fund boards, the future of malls,  Norway’s Sovereign Wealth fund, Prodigy Finance, the Mayo Clinic, and Cadbury rounded out the top ten.

Other year-end data for 2021 showed:

• Online “raw” case usage remained steady as compared to 2020 with over 35K users from 170 countries and all 50 U.S. states interacting with 196 cases.
• Fifty four percent of raw case users came from outside the U.S..
• The Yale School of Management (SOM) case study directory pages received over 160K page views from 177 countries with approximately a third originating in India followed by the U.S. and the Philippines.
• Twenty-six of the cases in the list are raw cases.
• A third of the cases feature a woman protagonist.
• Orders for Yale SOM case studies increased by almost 50% compared to 2020.
• The top 40 cases were supervised by 19 different Yale SOM faculty members, several supervising multiple cases.

CRDT compiled the Top 40 list by combining data from its case store, Google Analytics, and other measures of interest and adoption.

All of this year’s Top 40 cases are available for purchase from the Yale Management Media store .

And the Top 40 cases studies of 2021 are:

1.   Hertz Global Holdings (A): Uses of Debt and Equity

2.   Coffee 2016

3.   Hertz Global Holdings (B): Uses of Debt and Equity 2020

4.   Glory, Glory Man United!

5.   Search Fund Company Boards: How CEOs Can Build Boards to Help Them Thrive

6.   The Future of Malls: Was Decline Inevitable?

7.   Strategy for Norway's Pension Fund Global

8.   Prodigy Finance

9.   Design at Mayo

10. Cadbury

11. City Hospital Emergency Room

13. Volkswagen

14. Marina Bay Sands

15. Shake Shack IPO

16. Mastercard

17. Netflix

18. Ant Financial

19. AXA: Creating the New CR Metrics

20. IBM Corporate Service Corps

21. Business Leadership in South Africa's 1994 Reforms

22. Alternative Meat Industry

23. Children's Premier

24. Khalil Tawil and Umi (A)

25. Palm Oil 2016

26. Teach For All: Designing a Global Network

27. What's Next? Search Fund Entrepreneurs Reflect on Life After Exit

28. Searching for a Search Fund Structure: A Student Takes a Tour of Various Options

30. Project Sammaan

31. Commonfund ESG

32. Polaroid

33. Connecticut Green Bank 2018: After the Raid

34. FieldFresh Foods

35. The Alibaba Group

36. 360 State Street: Real Options

37. Herman Miller

38. AgBiome

39. Nathan Cummings Foundation

40. Toyota 2010

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StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-.

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Case study: 33-year-old female presents with chronic sob and cough.

Sandeep Sharma ; Muhammad F. Hashmi ; Deepa Rawat .

Affiliations

Last Update: February 20, 2023 .

• Case Presentation

History of Present Illness:  A 33-year-old white female presents after admission to the general medical/surgical hospital ward with a chief complaint of shortness of breath on exertion. She reports that she was seen for similar symptoms previously at her primary care physician’s office six months ago. At that time, she was diagnosed with acute bronchitis and treated with bronchodilators, empiric antibiotics, and a short course oral steroid taper. This management did not improve her symptoms, and she has gradually worsened over six months. She reports a 20-pound (9 kg) intentional weight loss over the past year. She denies camping, spelunking, or hunting activities. She denies any sick contacts. A brief review of systems is negative for fever, night sweats, palpitations, chest pain, nausea, vomiting, diarrhea, constipation, abdominal pain, neural sensation changes, muscular changes, and increased bruising or bleeding. She admits a cough, shortness of breath, and shortness of breath on exertion.

Social History: Her tobacco use is 33 pack-years; however, she quit smoking shortly prior to the onset of symptoms, six months ago. She denies alcohol and illicit drug use. She is in a married, monogamous relationship and has three children aged 15 months to 5 years. She is employed in a cookie bakery. She has two pet doves. She traveled to Mexico for a one-week vacation one year ago.

Allergies:  No known medicine, food, or environmental allergies.

Past Medical History: Hypertension

Past Surgical History: Cholecystectomy

Medications: Lisinopril 10 mg by mouth every day

Physical Exam:

Vitals: Temperature, 97.8 F; heart rate 88; respiratory rate, 22; blood pressure 130/86; body mass index, 28

General: She is well appearing but anxious, a pleasant female lying on a hospital stretcher. She is conversing freely, with respiratory distress causing her to stop mid-sentence.

Respiratory: She has diffuse rales and mild wheezing; tachypneic.

Cardiovascular: She has a regular rate and rhythm with no murmurs, rubs, or gallops.

Gastrointestinal: Bowel sounds X4. No bruits or pulsatile mass.

• Initial Evaluation

Laboratory Studies:  Initial work-up from the emergency department revealed pancytopenia with a platelet count of 74,000 per mm3; hemoglobin, 8.3 g per and mild transaminase elevation, AST 90 and ALT 112. Blood cultures were drawn and currently negative for bacterial growth or Gram staining.

Chest X-ray

Impression:  Mild interstitial pneumonitis

• Differential Diagnosis
• Aspiration pneumonitis and pneumonia
• Bacterial pneumonia
• Immunodeficiency state and Pneumocystis jiroveci pneumonia
• Carcinoid lung tumors
• Tuberculosis
• Viral pneumonia
• Chlamydial pneumonia
• Coccidioidomycosis and valley fever
• Recurrent Legionella pneumonia
• Mediastinal cysts
• Mediastinal lymphoma
• Recurrent mycoplasma infection
• Pancoast syndrome
• Pneumococcal infection
• Sarcoidosis
• Small cell lung cancer
• Aspergillosis
• Blastomycosis
• Histoplasmosis
• Actinomycosis
• Confirmatory Evaluation

CT of the chest was performed to further the pulmonary diagnosis; it showed a diffuse centrilobular micronodular pattern without focal consolidation.

On finding pulmonary consolidation on the CT of the chest, a pulmonary consultation was obtained. Further history was taken, which revealed that she has two pet doves. As this was her third day of broad-spectrum antibiotics for a bacterial infection and she was not getting better, it was decided to perform diagnostic bronchoscopy of the lungs with bronchoalveolar lavage to look for any atypical or rare infections and to rule out malignancy (Image 1).

Bronchoalveolar lavage returned with a fluid that was cloudy and muddy in appearance. There was no bleeding. Cytology showed Histoplasma capsulatum .

Based on the bronchoscopic findings, a diagnosis of acute pulmonary histoplasmosis in an immunocompetent patient was made.

Pulmonary histoplasmosis in asymptomatic patients is self-resolving and requires no treatment. However, once symptoms develop, such as in our above patient, a decision to treat needs to be made. In mild, tolerable cases, no treatment other than close monitoring is necessary. However, once symptoms progress to moderate or severe, or if they are prolonged for greater than four weeks, treatment with itraconazole is indicated. The anticipated duration is 6 to 12 weeks total. The response should be monitored with a chest x-ray. Furthermore, observation for recurrence is necessary for several years following the diagnosis. If the illness is determined to be severe or does not respond to itraconazole, amphotericin B should be initiated for a minimum of 2 weeks, but up to 1 year. Cotreatment with methylprednisolone is indicated to improve pulmonary compliance and reduce inflammation, thus improving work of respiration. [1] [2] [3]

Histoplasmosis, also known as Darling disease, Ohio valley disease, reticuloendotheliosis, caver's disease, and spelunker's lung, is a disease caused by the dimorphic fungi  Histoplasma capsulatum native to the Ohio, Missouri, and Mississippi River valleys of the United States. The two phases of Histoplasma are the mycelial phase and the yeast phase.

Etiology/Pathophysiology 

Histoplasmosis is caused by inhaling the microconidia of  Histoplasma  spp. fungus into the lungs. The mycelial phase is present at ambient temperature in the environment, and upon exposure to 37 C, such as in a host’s lungs, it changes into budding yeast cells. This transition is an important determinant in the establishment of infection. Inhalation from soil is a major route of transmission leading to infection. Human-to-human transmission has not been reported. Infected individuals may harbor many yeast-forming colonies chronically, which remain viable for years after initial inoculation. The finding that individuals who have moved or traveled from endemic to non-endemic areas may exhibit a reactivated infection after many months to years supports this long-term viability. However, the precise mechanism of reactivation in chronic carriers remains unknown.

Infection ranges from an asymptomatic illness to a life-threatening disease, depending on the host’s immunological status, fungal inoculum size, and other factors. Histoplasma  spp. have grown particularly well in organic matter enriched with bird or bat excrement, leading to the association that spelunking in bat-feces-rich caves increases the risk of infection. Likewise, ownership of pet birds increases the rate of inoculation. In our case, the patient did travel outside of Nebraska within the last year and owned two birds; these are her primary increased risk factors. [4]

Non-immunocompromised patients present with a self-limited respiratory infection. However, the infection in immunocompromised hosts disseminated histoplasmosis progresses very aggressively. Within a few days, histoplasmosis can reach a fatality rate of 100% if not treated aggressively and appropriately. Pulmonary histoplasmosis may progress to a systemic infection. Like its pulmonary counterpart, the disseminated infection is related to exposure to soil containing infectious yeast. The disseminated disease progresses more slowly in immunocompetent hosts compared to immunocompromised hosts. However, if the infection is not treated, fatality rates are similar. The pathophysiology for disseminated disease is that once inhaled, Histoplasma yeast are ingested by macrophages. The macrophages travel into the lymphatic system where the disease, if not contained, spreads to different organs in a linear fashion following the lymphatic system and ultimately into the systemic circulation. Once this occurs, a full spectrum of disease is possible. Inside the macrophage, this fungus is contained in a phagosome. It requires thiamine for continued development and growth and will consume systemic thiamine. In immunocompetent hosts, strong cellular immunity, including macrophages, epithelial, and lymphocytes, surround the yeast buds to keep infection localized. Eventually, it will become calcified as granulomatous tissue. In immunocompromised hosts, the organisms disseminate to the reticuloendothelial system, leading to progressive disseminated histoplasmosis. [5] [6]

Symptoms of infection typically begin to show within three to17 days. Immunocompetent individuals often have clinically silent manifestations with no apparent ill effects. The acute phase of infection presents as nonspecific respiratory symptoms, including cough and flu. A chest x-ray is read as normal in 40% to 70% of cases. Chronic infection can resemble tuberculosis with granulomatous changes or cavitation. The disseminated illness can lead to hepatosplenomegaly, adrenal enlargement, and lymphadenopathy. The infected sites usually calcify as they heal. Histoplasmosis is one of the most common causes of mediastinitis. Presentation of the disease may vary as any other organ in the body may be affected by the disseminated infection. [7]

The clinical presentation of the disease has a wide-spectrum presentation which makes diagnosis difficult. The mild pulmonary illness may appear as a flu-like illness. The severe form includes chronic pulmonary manifestation, which may occur in the presence of underlying lung disease. The disseminated form is characterized by the spread of the organism to extrapulmonary sites with proportional findings on imaging or laboratory studies. The Gold standard for establishing the diagnosis of histoplasmosis is through culturing the organism. However, diagnosis can be established by histological analysis of samples containing the organism taken from infected organs. It can be diagnosed by antigen detection in blood or urine, PCR, or enzyme-linked immunosorbent assay. The diagnosis also can be made by testing for antibodies again the fungus. [8]

Pulmonary histoplasmosis in asymptomatic patients is self-resolving and requires no treatment. However, once symptoms develop, such as in our above patient, a decision to treat needs to be made. In mild, tolerable cases, no treatment other than close monitoring is necessary. However, once symptoms progress to moderate or severe or if they are prolonged for greater than four weeks, treatment with itraconazole is indicated. The anticipated duration is 6 to 12 weeks. The patient's response should be monitored with a chest x-ray. Furthermore, observation for recurrence is necessary for several years following the diagnosis. If the illness is determined to be severe or does not respond to itraconazole, amphotericin B should be initiated for a minimum of 2 weeks, but up to 1 year. Cotreatment with methylprednisolone is indicated to improve pulmonary compliance and reduce inflammation, thus improving the work of respiration.

The disseminated disease requires similar systemic antifungal therapy to pulmonary infection. Additionally, procedural intervention may be necessary, depending on the site of dissemination, to include thoracentesis, pericardiocentesis, or abdominocentesis. Ocular involvement requires steroid treatment additions and necessitates ophthalmology consultation. In pericarditis patients, antifungals are contraindicated because the subsequent inflammatory reaction from therapy would worsen pericarditis.

Patients may necessitate intensive care unit placement dependent on their respiratory status, as they may pose a risk for rapid decompensation. Should this occur, respiratory support is necessary, including non-invasive BiPAP or invasive mechanical intubation. Surgical interventions are rarely warranted; however, bronchoscopy is useful as both a diagnostic measure to collect sputum samples from the lung and therapeutic to clear excess secretions from the alveoli. Patients are at risk for developing a coexistent bacterial infection, and appropriate antibiotics should be considered after 2 to 4 months of known infection if symptoms are still present. [9]

Prognosis 

If not treated appropriately and in a timely fashion, the disease can be fatal, and complications will arise, such as recurrent pneumonia leading to respiratory failure, superior vena cava syndrome, fibrosing mediastinitis, pulmonary vessel obstruction leading to pulmonary hypertension and right-sided heart failure, and progressive fibrosis of lymph nodes. Acute pulmonary histoplasmosis usually has a good outcome on symptomatic therapy alone, with 90% of patients being asymptomatic. Disseminated histoplasmosis, if untreated, results in death within 2 to 24 months. Overall, there is a relapse rate of 50% in acute disseminated histoplasmosis. In chronic treatment, however, this relapse rate decreases to 10% to 20%. Death is imminent without treatment.

• Pearls of Wisdom

While illnesses such as pneumonia are more prevalent, it is important to keep in mind that more rare diseases are always possible. Keeping in mind that every infiltrates on a chest X-ray or chest CT is not guaranteed to be simple pneumonia. Key information to remember is that if the patient is not improving under optimal therapy for a condition, the working diagnosis is either wrong or the treatment modality chosen by the physician is wrong and should be adjusted. When this occurs, it is essential to collect a more detailed history and refer the patient for appropriate consultation with a pulmonologist or infectious disease specialist. Doing so, in this case, yielded workup with bronchoalveolar lavage and microscopic evaluation. Microscopy is invaluable for definitively diagnosing a pulmonary consolidation as exemplified here where the results showed small, budding, intracellular yeast in tissue sized 2 to 5 microns that were readily apparent on hematoxylin and eosin staining and minimal, normal flora bacterial growth. 

• Enhancing Healthcare Team Outcomes

This case demonstrates how all interprofessional healthcare team members need to be involved in arriving at a correct diagnosis. Clinicians, specialists, nurses, pharmacists, laboratory technicians all bear responsibility for carrying out the duties pertaining to their particular discipline and sharing any findings with all team members. An incorrect diagnosis will almost inevitably lead to incorrect treatment, so coordinated activity, open communication, and empowerment to voice concerns are all part of the dynamic that needs to drive such cases so patients will attain the best possible outcomes.

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Histoplasma Contributed by Sandeep Sharma, MD

Disclosure: Sandeep Sharma declares no relevant financial relationships with ineligible companies.

Disclosure: Muhammad Hashmi declares no relevant financial relationships with ineligible companies.

Disclosure: Deepa Rawat declares no relevant financial relationships with ineligible companies.

This book is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ), which permits others to distribute the work, provided that the article is not altered or used commercially. You are not required to obtain permission to distribute this article, provided that you credit the author and journal.

• Cite this Page Sharma S, Hashmi MF, Rawat D. Case Study: 33-Year-Old Female Presents with Chronic SOB and Cough. [Updated 2023 Feb 20]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-.

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Case Study: How Aggressively Should a Bank Pursue AI?

• Thomas H. Davenport
• George Westerman

A Malaysia-based CEO weighs the risks and potential benefits of turning a traditional bank into an AI-first institution.

Siti Rahman, the CEO of Malaysia-based NVF Bank, faces a pivotal decision. Her head of AI innovation, a recent recruit from Google, has a bold plan. It requires a substantial investment but aims to transform the traditional bank into an AI-first institution, substantially reducing head count and the number of branches. The bank’s CFO worries they are chasing the next hype cycle and cautions against valuing efficiency above all else. Siti must weigh the bank’s mixed history with AI, the resistance to losing the human touch in banking services, and the risks of falling behind in technology against the need for a prudent, incremental approach to innovation.

Two experts offer advice: Noemie Ellezam-Danielo, the chief digital and AI strategy at Société Générale, and Sastry Durvasula, the chief information and client services officer at TIAA.

Siti Rahman, the CEO of Malaysia-headquartered NVF Bank, hurried through the corridors of the university’s computer engineering department. She had directed her driver to the wrong building—thinking of her usual talent-recruitment appearances in the finance department—and now she was running late. As she approached the room, she could hear her head of AI innovation, Michael Lim, who had joined NVF from Google 18 months earlier, breaking the ice with the students. “You know, NVF used to stand for Never Very Fast,” he said to a few giggles. “But the bank is crawling into the 21st century.”

• Thomas H. Davenport is the President’s Distinguished Professor of Information Technology and Management at Babson College, a visiting scholar at the MIT Initiative on the Digital Economy, and a senior adviser to Deloitte’s AI practice. He is a coauthor of All-in on AI: How Smart Companies Win Big with Artificial Intelligence (Harvard Business Review Press, 2023).
• George Westerman is a senior lecturer at MIT Sloan School of Management and a coauthor of Leading Digital (HBR Press, 2014).

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Historical Case Study

2020, Methods of Analysis

It would seem that historical method has always implied case study if interpreted as the history of single events, episodic history as different from universal history, courtes durées as different from longues durées. From the early twentieth century, historical case study was basically biography, particularities of individuals used to counter the “vast amount of generalization” marking most histories and textbooks (Nichols, 1927, p. 270). Yet historical case study, in the way historians think of it, is primarily a post-WWII methodology.

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Historical method is technique developed to present past events in their correct perspective. It helps us to know how to write history, as the goal of historical writing is to reconstruct the past as nearly as it really happened, for this the material has to be used with great care. It involves diligently collecting of all relevant sources, critically examining the literal and real meaning of the text and penetrating or scrutiny to eliminate all possible errors. A historian also requires reason and imagination, skill and foresight, logic and intuition for presenting materials as he had to investigate things that took place decades or even hundreds or thousands of years ago without any trace of evidence. It is a process of making different parts of sources into integrated whole.

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Historical methods of research are the process of systematically examining an account of what has happened in the past. It is not facts and dates or even a description of past events. The dynamic account of past events that involves an interpretation attempt to recapture the personalities and ideas of the events. One of the goals of historical research is to communicating of past events. In the field of library and information science, there are vast arrays of topics that may be considered for conducting historical research. For example, a researcher may choose to answer to questions about the development of any type of the libraries, the rise of technology and the benefits/ problems it brings, the development of preservation methods, famous personalities in the field, library statistics, or geographical demographics and how they affect library distribution.

Journal of Applied History

Jelle van Lottum

The past few years, the field of applied history has witnessed the publication of several manifestoes, the establishment of dedicated research centers, and the foundation of an academic journal. Conceptual discussions about the notion of applied history and the very fact that the methods and techniques of applied history are now part of the discipline of history provide further evidence of the field’s maturity. By offering an historiographical overview tracing the roots of applied history, this article will show that both discussions about the contemporary relevance and application of historical thinking, and the actual application of history to current events, possess a long history: applied history has been part and parcel of history writing since ancient times. Moreover, the article offers a discussion of recent debates about the concept and methods of applied history and concludes by mapping the trends that are shaping its current development.

Aaron Milavec

This article details the personal history of how a New Testament and church history professor abandoned traditional teaching methods as he became captivated by the Harvard Case Study Method and went on to create dozens of Case Studies designed to facilitate the interactive learning of his college and seminary students. The advantages and disadvantages of this methodology are examined, with special attention being given to the needs of adult learners who find all significant learning to be deep, personal, and transformative. The article illustrates how the author orientates his students to readjust their learning style to take advantage of a self-discovery mode of learning. Details are provided as to how the Guardian Angel and Learning Partner function to facilitate cooperative learning and the sharing of satisfaction beyond the classroom. Teaching with Case Studies results in a nine-fold increase in the interaction between students in the classroom. Students respond enthusiastically because Case Studies enables them to do deep thinking, and everyone comes into class with something to contribute. Adult learners, more especially, learn best with Case Studies because they thrive when they are figuring things out for themselves and going at their own pace. Former graduates regularly return to tell me, "You were my best teacher." They invariably point to some combination of their experience doing my Case Studies and my contagious enthusiasm for learning. They say, "The Case Studies taught me how sacred texts are initially shaped by and later end up shaping a faith community." Others tell me how they repeatedly used the deep lessons learned: "Not a week passes when I don't make use of my discoveries in one or the other of your Case Studies." For many years I stayed away from the Case Study Methodology because I judged that the time in the classroom was too precious to waste on ill-defined and open-ended discussions. . . .

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Computer Science > Data Structures and Algorithms

Title: matrix multiplication reductions.

Abstract: In this paper we study a worst case to average case reduction for the problem of matrix multiplication over finite fields. Suppose we have an efficient average case algorithm, that given two random matrices $A,B$ outputs a matrix that has a non-trivial correlation with their product $A \cdot B$. Can we transform it into a worst case algorithm, that outputs the correct answer for all inputs without incurring a significant overhead in the running time? We present two results in this direction. (1) Two-sided error in the high agreement regime: We begin with a brief remark about a reduction for high agreement algorithms, i.e., an algorithm which agrees with the correct output on a large (say $>0.9$) fraction of entries, and show that the standard self-correction of linearity allows us to transform such algorithms into algorithms that work in worst case. (2) One-sided error in the low agreement regime: Focusing on average case algorithms with one-sided error, we show that over $\mathbb{F}_2$ there is a reduction that gets an $O(T)$ time average case algorithm that given a random input $A,B$ outputs a matrix that agrees with $A \cdot B$ on at least $51\%$ of the entries (i.e., has only a slight advantage over the trivial algorithm), and transforms it into an $\widetilde{O}(T)$ time worst case algorithm, that outputs the correct answer for all inputs with high probability.

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