◎ Contents 1. New perspective on adolescenr risk behavior Part Ⅰ A focus on development 2. New dirctions in development research : Models and methods Part Ⅱ A focus on problem behavaior 3. Persistent themes and new perpectives on adolescent subtance use : A lifespan perpective 4. Multiple risk factors for multiproblems boys: Co-occurrence of delinquency, substane use,attention deficit, conduct problems, physical aggression, covert behavior, depressed mood, and shy/withrawn behavior 5. Adult outcomes of adolescent drug use: A comparison of process-oriented and incremental analyses 6. Linking etiology abd trement for adolescent substane abuse: Toward a better match Part Ⅲ A focus on sxeual activity 7. Risky driving behavior among adolescents 8. New methods for new research on adolescent sexual behavior 9. Betwixt and between: Sexuality in the context of adolescent transitions Part Ⅳ A focus on psychopathology 10. New perpectives on psychopathology Part Ⅴ A focus on social role performance 11. Transition to adulthood among high-risk youth 12. Disengagement form school and problem behavior in adolescence: A developmental-contextual analysis 13. New perpectives on adolescent work and the transtion to adulthood Part Ⅵ Oerview and integration 14. Life course capitalization and adolescent behavioral development 15. Lessons we learned -problems still to be solved ◎ Abstract In this collection, scholars of adolescent risk behaviour present recent ideas and findings about the variety of behaviours that can compromise adolescent development, including drug use, risky driving, early sexual activity, depression, and school disengagement. The volume emphasizes new perspectives on development and on person-centered analysis.