Psychological entrapment in group decision making: An assigned decision rule and a groupthink phenomenon. |
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Authors: | Kameda, Tatsuya Sugimori, Shinkichi |
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Abstract: | Addressed interpersonal factors affecting group entrapment and also attempted to delineate a conceptual link between collective entrapment and I. L. Janis's (1972, 1982) notion of groupthink. Two experiments were conducted in which 3-person groups were assigned either majority or unanimity rule as an official consensus requirement for their initial decision. It was expected and confirmed that groups whose initial decision processes were guided by unanimity rule were entrapped more often to the chosen course of action than were groups with majority rule. The results also suggested that homogeneity of members' opinions at the outset of interaction and group's rationalization norm were responsible for the observed difference. Discussion is focused on the implications of these findings for administrative decision contexts and their conceptual link of the notion of groupthink. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
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