What is a detailed investigation of an issue that seeks to understand its evolution over time?

A case study is a detailed investigation of an issue that seeks to understand its evolution over time. This method involves an in-depth analysis of a particular instance or example within a real-world context, allowing researchers to explore the complexities and dynamics that influence the subject of study.

By focusing on a specific case, researchers can gather qualitative data through various means, such as interviews, observations, and document analysis. This comprehensive approach helps illustrate how the issue has developed, its influences, and its implications over time, making it possible to draw more nuanced conclusions.

In comparison to other options, a field study often focuses on gathering data in natural settings without the same level of depth regarding the evolution of a particular issue. A literature review synthesizes existing research on a topic but does not involve the same level of detail about a specific case or its historical context. Survey analysis typically relies on quantitative data obtained from respondents in a structured manner, which can provide a snapshot of a phenomenon rather than a comprehensive historical overview. Thus, a case study is uniquely suited to investigate an issue's progression and complexities over time.