Accuracy and perceived expert status in group decisions: when minority members make majority members more accurate privately
Author: Sinaceur, Marwan ; Thomas-Hunt, Melissa C. ; Neale, Margaret A. ; O'Neill, Olivia A. ; Haag, ChristopheINSEAD Area: Organisational BehaviourIn: Personality and Social Psychology Bulletin, vol. 36, no. 3, March 2010 Language: EnglishDescription: p. 423-437.Type of document: INSEAD ArticleNote: Please ask us for this itemAbstract: We examined how the minority's perceived (i.e., not real) expertise affects group discussion and performance. In two experiments, participants were randomly assigned to interacting groups in which the minority faction was perceived as either expert or not. Groups performed a decision task that involved solving a murder mystery. Both experiments showed that minorities perceived as expert (vs. not perceived as expert) made majority individuals acquire more accurate private judgments after group discussion, although the public group decision was not more accurate. In parallel, perceived expertise made minority members change their own judgments less. Experiment 1 also showed that minorities' questioning behaviors mediated the effect of minorities' perceived expertise on majority members' private accuracy. Experiment 2 further showed that majority members' deeper processing was also a mediator. Thus, minorities with perceived expertise serve as a catalyst, increasing the quality of majority members' cognitions, but not their own| Item type | Current location | Call number | Status | Date due | Barcode | Item holds |
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We examined how the minority's perceived (i.e., not real) expertise affects group discussion and performance. In two experiments, participants were randomly assigned to interacting groups in which the minority faction was perceived as either expert or not. Groups performed a decision task that involved solving a murder mystery. Both experiments showed that minorities perceived as expert (vs. not perceived as expert) made majority individuals acquire more accurate private judgments after group discussion, although the public group decision was not more accurate. In parallel, perceived expertise made minority members change their own judgments less. Experiment 1 also showed that minorities' questioning behaviors mediated the effect of minorities' perceived expertise on majority members' private accuracy. Experiment 2 further showed that majority members' deeper processing was also a mediator. Thus, minorities with perceived expertise serve as a catalyst, increasing the quality of majority members' cognitions, but not their own
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