Questions: Which of the following is a weakness of the case study method? Its results are usually not generalizable. It requires too many subjects to run efficiently in most cases. It allows the researcher to control only the independent, but not the dependent, variable. It cannot be used with predictive hypotheses.

The answer is: Its results are usually not generalizable.

This is a well-recognized weakness of the case study method. Case studies often focus on a single subject or a small group, which means the findings may not be applicable to broader populations. The depth of information gathered in a case study is valuable for understanding specific instances but does not necessarily translate to general principles applicable to other cases.

This is not a weakness of the case study method. In fact, case studies typically involve a small number of subjects, often just one, which allows for an in-depth exploration of the subject matter. The focus is on detailed analysis rather than large sample sizes.

This statement is not accurate in the context of case studies. Case studies are often observational and do not involve the manipulation of variables in the same way experimental methods do. Therefore, the control of independent or dependent variables is not typically a concern in case studies.

This is not a recognized weakness of the case study method. While case studies are more often used for exploratory or descriptive purposes, they can still contribute to the development of predictive hypotheses, especially when they provide insights into complex phenomena that can be tested in future research.