For his research project, Cooper interviews five people in depth. Then he summarizes the interview findings and includes some observations about each person he interviewed. Each of the documents that results from this process—one per interviewee—is called a what?

A case study is an in-depth examination of an individual or a small group, often combining interview findings with observations. Since Cooper produces one document about each person he interviewed, each document is a case study; beneficence and ethics review concern research ethics, while a hypothesis is a proposed explanation to test.

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