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Hidden Profiles and Concealed Information: Strategic Information Sharing and Use in Group Decision Making

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Toma, Claudia [] Butera, Fabrizio [] Toma, Claudia [UCL]

Two experiments investigated the differential impact of cooperation and competition on strategic information sharing and use in a three-person group decision-making task. Information was distributed in order to create a hidden profile so that disconfirmation of group members' initial preferences was required to solve the task. Experiment 1 revealed that competition, compared to cooperation, led group members to withhold unshared information, a difference that was not significant for shared information. In competition, compared to cooperation, group members were also more reluctant to disconfirm their initial preferences. Decision quality was lower in competition than in cooperation, this effect being mediated by disconfirmation use and not by information sharing. Experiment 2 replicated these findings and revealed the role of mistrust in predicting strategic information sharing and use in competition. These results support a motivated information processing approach of group decision making.

Document type Article de périodique (Journal article) – Comparative Study, Journal Article, Research Support, Non-U.S. Gov't
Access type Accès restreint
Publication date 2009
Language Anglais
Journal information "Personality and social psychology bulletin" - Vol. 35, no. 6, p. 793-806 (2009)
Peer reviewed yes
issn 0146-1672
Affiliation UCL - SSH/IPSY - Psychological Sciences Research Institute
MESH Subject Videotape Recording ; Task Performance and Analysis ; Students - psychology ; Social Perception ; Problem Solving ; Pilot Projects ; Motivation ; Models, Psychological ; Male ; Humans ; Group Processes ; Female ; Decision Making ; Cooperative Behavior ; Competitive Behavior ; Choice Behavior ; Adult ; Accidents, Traffic - psychology
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Bibliographic reference Toma, Claudia ; Butera, Fabrizio ; Toma, Claudia. Hidden Profiles and Concealed Information: Strategic Information Sharing and Use in Group Decision Making . In: Personality and social psychology bulletin, Vol. 35, no. 6, p. 793-806 (2009)
Permanent URL http://hdl.handle.net/2078.1/76146