A longitudinal examination of power in sibling and friend conflict

This study examined use of power resources and power effectiveness during the process and outcome of focal children's disputes with their sibling and friend across early and middle childhood. Participants included 35/46 families; focal children (15 males, 20 females) were observed at the age of four (T1) and 3 years later at the age of seven (T2) at home. Sibling and friend conflict sequences were coded for power resources (coercive physical, coercive verbal, simple information, elaborated information, legitimate), immediate power effectiveness (attempt, success), and conflict outcome. Relationship effects indicated focal children employed coercive physical and legitimate power more with siblings whereas they used simple information power more with friends during the conflict process. Focal children were more effective using legitimate power with siblings than friends in the conflict process whereas information power was used more when focal children won conflicts with friends. Regarding developmental effects, focal children employed more coercive physical power at T1 than T2 and elaborated information power at T2 than T1. In contrast, focal children were more effective using information power and coercion when winning conflicts with friends at T2 than T1. Results highlight variability in children's use of power based on relationship partner and development.