Which of the Following Statements About Case Studies Is TRUE

Multiple Choice

Which of the following statements about case studies is TRUE?

A) It is important to look for evidence that might disconfirm the hypothesis as well as evidence that might support it.
B) Control cases that differ markedly from the test case enhance the external validity of the study.
C) To maintain naturalism one should avoid using objective measures as much as possible.
D) One should ignore any information that arises that is not part of the data collection plan.