What is a case study primarily used for in research?

A case study is primarily used in research to provide an in-depth examination of specific instances or events. This method allows researchers to explore and analyze complex issues in detail, often yielding rich qualitative data that can illuminate the nuances of the subject under investigation. By focusing on particular cases, researchers can gain insight into unique phenomena that might not be captured through broader quantitative methods.

This approach is especially useful in fields such as social sciences, business, education, and healthcare, where understanding the context and specifics of a situation can lead to deeper insights. The thorough analysis involved in a case study enables researchers to explore the "how" and "why" behind certain outcomes, fostering a comprehensive understanding of the subject matter.

In contrast, analyzing statistical correlations or conducting surveys focuses more on breadth rather than depth, often sacrificing the depth of understanding that a case study provides in favor of generalizability to larger populations.