Depression is a serious medical condition. It occurs in people of all ages, but only in the past two decades has depression in children and adolescents been taken seriously. Children and adolescents with depression may exhibit such behaviors as pretending to be sick, refusing to go to school or getting in trouble at school, clinging to a parent or worrying that the parent may die, sulking, or acting in a negative or grouchy manner. A previous study demonstrated that, when administered by clinicians in school-based clinics, individual interpersonal psychotherapy is effective in reducing depressive symptoms and improving global and social functioning. This study will assess the effectiveness of group interpersonal psychotherapy (IPT-AG) versus treatment as usual (TAU) in improving depressive symptoms of adolescents in school-based health clinics.