Among adolescents, SAD and depression are prevalent, highly comorbid, and can be chronic and impairing. Interpersonal peer victimization (IPV) is a key stressor that contributes to both social anxiety and depression in adolescents; it includes relational (e.g., social exclusion) and reputational (e.g., spreading rumors) forms of peer victimization. Currently, there are no preventive interventions for adolescent SAD. Also, effective preventive interventions for adolescents have not yet integrated a focus on both social anxiety and depression or targeted specific peer risk factors. Interventions for depression and for bullying have not addressed IPV, which is less observable than overt victimization (e.g., threats, physical acts).