Individual Contribution in Brain-storming: Does Group Composition Make a Difference?

다국어 초록 (Multilingual Abstract)

Factors affecting individual performance in group tasks such as social loafing and social facilitation have been widely investigated. Past studies compared groups made up of friends or strangers based on prior acquaintance before the experiment, without directly manipulating the level of group cohesiveness. Based on Karau and William’s (1997) rationale about the effect of group cohesiveness on social facilita- tion and social loafing, we tested two hypotheses: (1) When individual members do brain-storming in high cohesiveness group, they work harder and generate more ideas (social facilitation). (2) When individual members do brain-storming in low cohesiveness group, they work less hard and generate fewer ideas (social loafing). Results supported the second hypothesis, but failed to support the first one.

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