摘要:We applied an ecological multiple risk/protective factor model to study factors related to depressive symptoms among adolescents. Participants were 39,740 adolescents who self-reported risk factors, protective factors, and depressive symptoms on a school-based survey. Results indicate that an index of multiple risk was related to increased depressive symptoms. Two hypothesized protective factors moderated the effects of the risk index; four other hypothesized protective factors were directly related to lower levels of depressive symptomatology. These findings suggest that prevention strategies for externalizing behaviors currently used in Extension programs might be able to be extended to address depressive symptoms.