Friends’ discussions of interpersonal and noninterpersonal problems during early and middle adolescence: Associations with co-rumination.

Friendships are important sources of support during adolescence. However, a growing literature indicates some adolescents co-ruminate, or talk with friends about problems in a way that is excessive, speculative, and negatively focused, which confers risk for internalizing problems. Still, previous research had not examined the types of problems co-ruminators discuss. Using self-reported co-rumination and observations of friends' conversations about problems, the present study of early and middle adolescents addressed this gap. Participants (