The effects of experience, expertise, reward power, and decision power in groups

Abstract

Group members influence one another’s thinking in virtually every context, yet little research addresses how different combinations of experience, expertise, and power affect group dynamics and outcomes. Combining theory on social hierarchy and group decision-making, we offer a more comprehensive perspective. Method: Participants (N = 360) completed estimation tasks individually and then again in a face-to-face group using a multiphase design. Intragroup influence and task performance were measured. Results: When a group member was perceived to have relevant experience, group decisions were weighted toward her preferences. When someone in the group held decision or reward power, group decisi..