Which of the Following Statements About Compensating Members of Control

Multiple Choice

Which of the following statements about compensating members of control groups is/are TRUE?

A) There is no need to compensate individuals who participate in the control group as long as they were randomly assigned to that group.
B) In the case of psychotherapy research, the control group participants should be given the opportunity to select an alternative psychotherapeutic service.
C) In experimental research, when participants are given a reward as part of a manipulation, members of control groups should be compensated to the same extent.
D) All the above are true.