Effects of Information Heterogeneity and Representational Roles on Group Member Behavior and Perceptions

London, Manuel
February 1977
Journal of Applied Psychology;Feb77, Vol. 62 Issue 1, p76
Academic Journal
The effects of information heterogeneity (heterogeneous vs. homogeneous), representational role obligations (some vs. none), and group composition (male vs. female) were studied. Data were gathered from 40 three-person groups of students participating in a simulation involving nuclear power plant siting. Heterogeneity of information was shown to inhibit social-emotional responses and to increase member influence. The presence of representational role obligations resulted in lower perceived member effectiveness than the absence of role obligations. Female groups took longer `to reach agreement than male groups. Implications of the results for the assemblage and leadership of task forces are discussed.


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