Previous work on adolescents' disclosure has focused on the frequency of disclosure to parents, but not the quality of that disclosure. Therefore, there is a need to examine factors that predict the quality of adolescents' disclosure, as well as the consequences of the quality for adolescents' outcomes.In this study, 100 adolescents (M age = 14.27 years; 57 girls; 70.7% White, European American) disclosed to mothers a recent past event in which they felt excluded; the videotaped and transcribed conversations were rated for indices of the quality of disclosure (i.e., the quality of elaboration and emotion discussed). Adolescents completed measures of sociomoral behavior and parental warmth and mothers completed measures of their moral identity, circle of moral regard, and moral socialization. The quality of adolescents' disclosure was related to adolescents' sociomoral outcomes (including prosocial behaviors, empathy, and sociability).Adolescents' disclosure quality was predicted by gender and by aspects of mothers' moral sophistication. Findings highlight the importance of high-quality self-disclosure by adolescents for promoting adolescents' moral development, potentially because such disclosure gives parents the opportunity to help adolescents cope with challenging peer experiences potentially through emotion coaching and | 783 LAIBLE Et AL.