Stewart D D, Stasser G
Department of Psychology, Miami University, USA.
J Pers Soc Psychol. 1995 Oct;69(4):619-28. doi: 10.1037//0022-3514.69.4.619.
Previous research has found that decision-making groups do not effectively pool unshared information. This study examined how personal expertise facilitates the mentioning and validation of unshared information in collective recall and decision-making groups by increasing members' awareness of who holds what types of information. Assigned expertise increased substantially the proportion of unshared information mentioned during both collective recall and decision-making tasks. Two results supported the hypothesis that assigned expertise provides validation for the recall of unshared information. When expertise was assigned, (a) more of the unshared information mentioned during the recall task was retained on the collectively endorsed written protocol, and (b) unshared information that was mentioned in discussion was more likely to be correctly recognized by members after group interaction.
先前的研究发现，决策小组无法有效地汇集非共享信息。本研究考察了个人专业知识如何通过提高成员对谁掌握何种信息的认知，来促进集体回忆和决策小组中非共享信息的提及和验证。指定专业知识显著增加了集体回忆和决策任务中提及的非共享信息的比例。两项结果支持了以下假设：指定专业知识为非共享信息的回忆提供了验证。当指定了专业知识时，(a) 在回忆任务中提及的更多非共享信息被保留在集体认可的书面记录中，并且(b) 在讨论中提及的非共享信息在小组互动后更有可能被成员正确识别。
