What is a disadvantage of a case study?

Results only apply to the case studied and cannot be generalized.

People in unfamiliar environments behave differently.

Subjects often report only what they believe the researcher is looking for.

Case studies prove that one variable causes another.

Case study is a type of research where method where a subject of study is analyzed in depth so a detailed examination of the subject's experience can be utilized for understanding his or her condition.

The biggest disadvantage to case studies is that the results only apply to the case studied and cannot be generalized.