The document discusses the case study method as an intensive and comprehensive research technique focused on a social unit, such as a person or community, to understand influencing factors and their relationships. It outlines the steps involved in conducting a case study, as well as its advantages, such as deep analysis and hypothesis formulation, and disadvantages, including limited generalizability and susceptibility to biases. Overall, the case study method is highlighted as valuable for diagnosis and treatment in educational and counseling contexts.