A case study is a research method that involves an in-depth and detailed examination of a single individual, group, event, or situation. It is often used in social sciences, psychology, business, and other fields to provide a comprehensive analysis of a specific case or scenario. Case studies typically involve collecting and analyzing data from various sources, such as interviews, observations, documents, and other relevant information, in order to gain a deeper understanding of the subject being studied. The findings of a case study can be used to generate new theories, test existing theories, or provide practical insights for solving real-world problems.