Abstract
Group members'estimations oftheircontributions to a collective endeavorwere investigated by assessing perceptions of responsibility following completion of an additive group task. As an information-processing approach to attributions in groups suggests, only those who performed well at the individual level internalized success and externalized failure. Those who failed tended to take more responsibility for their group s failure rather than success. Group members also displayed a group-serving tendency; they gave more responsibility to others after success rather than failure. The results suggest that attributional asymmetries following group performance may result from group members' exaggeratedly positive appraisals of their personal competencies.
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