30. The Roles of Post-Traumatic Stress Disorder and Coping in Relations Between Cumulative Trauma and Adolescents' Academic Performance and Risky School Behavior - Aamena Saleh, Wayne State University; Cheryl Leigh Somers, Wayne State University; Lisa Chiodo, University of Massachusetts - Amherst; Jina Yoon, Wayne State University; Ibrahim Kira, Center for Cumulative Trauma Studies; Virginia Delaney-Black, Wayne State University; Linda Lewandowski, University of Massachusetts - Amherst