Effects of leadership and task demonstrability on information repetition in decision-making groups.

摘要

This study examined the effects of leadership and task demonstrability on the repetition of shared and unshared information in decision-making groups. Participants worked in 3-person groups (one leader and two non-leaders) to either solve a murder mystery (intellective task) or rank the three murder suspects in order of likely guilt (judgmental task). After discussion, members of groups that construed the task as intellective chose the correct suspect more often than members of groups that construed the task as judgmental. As expected, leaders repeated more information than non-leaders. However, their repetitions focused largely on shared rather than unshared information. Task demonstrability did not qualify the effects of leadership on information repetition.