◎ Contents Ⅰ. Patterns of Development 1. Research Perspectives 2. Adolescence as a Biological Phenomenon 3. Intellectual Development 4. Psychosocial Development and the Peer Group 5. Personality Development 6. Psychosexual Roles 7. Toward Self-Supporting Behavior 8. Socialization and Self-Determination 9. The Need for Guidance Ⅱ. The Problems of Adolescence 10. The Boy Image 11. Emotional Imbalance 12. Sexual Problems 13. Antisocial and Aggressive Behavior 14. alcohol and Drug Abuse Ⅲ. Causes and Remedies 15. The Changing Organism 16. Psychosocial Issues 17. Between Adults and Adolescents ◎ Abstract Part I describes the biological and sociopsychological developmental processes; Part II focuses on the special problems of contemporary adolescents; Part III analyzes the causes of the problems and discusses tentative remedies. Written for psychologists, psychiatrists, sociologists, and anthropologists.