Robert Yin等资深案例研究法学者认为，案例研究适合回答“是什么

Robert Yin case studies and other senior legal scholars believe, for the case study to answer "what" and "why" questions. Case studies to gain knowledge by collecting objective information about things, summarized or interpreted. The result depends largely on the researcher's own ability (Yanow & Schwartz-Shea, 2015).

Senior case study scholars such as Robert Yin argue that case studies are appropriate to answer "what" and "why" questions. Case studies gain knowledge by gathering objective information, generalizations, or explanations of things. The results depend to a large extent on the researchers' own abilities (Yanow and Schwartz-Shea, 2015).

Senior case study jurists such as Robert Yin think that case study is suitable for answering the questions of "what" and "why". Case studies acquire knowledge by collecting objective information, induction or explanation about things. The results of the study largely depend on the ability of the researchers themselves (Yanow & Schwartz Shea, 2015).