Accurate, Deceptive, and No Prior Feedback About Decisionmaking Acumen as an Influencer of Group Decisionmaking


Requests for reprints should be sent to Dr. W. A. Frederickson, Department of Psychology, Central State University, Edmond, Oklahoma 73034.


Eighteen groups of four subjects each performed the “Lost on the Moon” task before and after group discussion of the task. The major variable manipulated involved the influence of a group member's knowledge about his pretest performance on group decisionmaking. It was found that the greatest influence is exerted by individuals told by the experimenter that their performance was the most accurate when it was actually the least accurate. Under this influence synergy, although achieved, was impeded relative to gains made by the control condition and the condition where the “piant” actually had the most accurate score within his group on a pretest.