The Effects of Evaluation and Production Blocking on the Performance of Brainstorming Groups
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH
Pagination or Media Count:
Evaluation apprehension and production blocking have been identified as possible factors leading to the reduced performance of brainstorming groups. In some experiments high evaluation led to reduced group performance, while in other experiments performance was unaffected. The present experiment examined the effects of outside evaluation and production blocking of group performance. The resulting 2 x 2 design used responses from 171 introductory psychology students, run in same-gender groups of three. Contrary to the evaluation apprehension hypothesis, evaluation level had no significant adverse effect on group performance. In support of the production blocking hypothesis, low production blocking groups generated significantly more ideas than high production blocking groups. Satisfaction with the group experience and satisfaction with individuals and group performance were also examined. Explanations for the results are discussed as well as limitations and suggestions for future research.