Social Psychologists Sometimes Conceal Information About the True Purpose of a Study

Social psychologists sometimes conceal information about the true purpose of a study from the research participants until after the study is completed.This use of deception is justified when ________.

A) the participants would otherwise not agree to participate in the study
B) knowledge of the study's purpose may alter the behavior of the participants
C) approval from the researcher's review board has been granted
D) social behavior and thought is the subject of the experiment
E) the deception will not harm the participants in any way