The American Psychological Association and British Psychological Society Have Developed

The American Psychological Association and British Psychological Society have developed ethical principles urging investigators to

A) avoid the use of monetary incentives in recruiting people to participate in research.
B) forewarn potential research participants of the exact hypotheses that the research will test.
C) avoid the manipulation of independent variables in research involving human participants.
D) explain the research to the participants after the study has been completed.