21) A psychology class has been assigned an individual case study project as well as a group project. The members of the group will receive the same grade for the group project, but they will be graded separately for their individual projects. Drew, Ben, Donna, and Julia are members of one such group. Drew and Donna worked very hard on the group project. Ben and Julia, however, did not contribute much to the group project because they felt that Drew and Donna would manage to get good grades for it. Instead, they focused their efforts on their individual projects. Ben and Julia's behavior is an example of A) groupthink. B) staff validity. C) self-serving bias. D) social loafing. E) attribution error.

21) A psychology class has been assigned an individual case study project as well as a group project. The members of the group will receive the same grade for the group project, but they will be graded separately for their individual projects. Drew, Ben, Donna, and Julia are member of one such group. Drew and Donna worked very hard on the group project. Ben and Julia, however, did not contribute much to the group project because they felt that Drew and Donna would manage to get good grades for it. Instead, they focused their efforts on their individual projects. Ben and Julia's behavior is an example of A) groupthink. B) staff validity. C) self-serving bias. D) social loafing. E) attribution error