This text integrates state-of-the-art theory and empirical research on a wide range of child and adolescent disorders. Featuring contributions from leading scholars and clinicians, the volume provides comprehensive coverage of the biological, psychological, and social-contextual determinants of childhood problems. Each chapter focuses on a specific disorder, describing its characteristics, developmental course, and epidemiology; outlining current diagnostic and classification schemes; identifying risk and protective factors; and discussing implications for prevention and treatment. This second edition contains a new chapter on adolescent substance use disorders and has been updated throughout to reflect important advances in the field. Incorporated is emerging knowledge in the areas of neurobiology, genetics, developmental psychology, and emotions, as well as new findings on sex differences in psychopathology and long-term outcomes for children at risk. Chapters include: (1) "Child Psychopathology: A Developmental-Systems Perspective" (E. J. Mash and D. J. A. Dozois); (2) "Attention-Deficit/Hyperactivity Disorder" (R. A. Barkley); (3) "Conduct and Oppositional Defiant Disorders" (S. P. Hinshaw and S. S. Lee); (4) "Adolescent Substance Use Disorders" (L. Chassin, J. Ritter, R. S. Trim, and K. M. King); (5) "Childhood Mood Disorders" (C. Hammen and K. D. Rudolph); (6) "Childhood Anxiety Disorders" (A. M. Albano, B. F. Chorpita, and D. H. Barlow); (7) "Childhood Posttraumatic Stress Disorder" (K. E. Fletcher); (8) "Social Withdrawal in Childhood" (K. H. Rubin, K. B. Burgess, A. E. Kennedy, and S. L. Stewart); (9) "Autistic Disorder" (L. G. Klinger, G. Dawson, and P. Renner); (10) "Childhood-Onset Schizophrenia" (J. R. Asarnow and R. F. Asarnow); (11) "Mental Retardation (Intellectual Disabilities)" (R. M. Hodapp and E. M. Dykens); (12) "Learning Disabilities" (G. R. Lyon, J. M. Fletcher, and M. C. Barnes); (13) "Disorder and Risk for Disorder during Infancy and Toddlerhood" (K. Lyons-Ruth, C. H. Zeanah, and D. Benoit); (14) "Child Maltreatment" (C. Wekerle and D. A. Wolfe); (15) "Eating Disorders" (G. T. Wilson, C. Black Becker, and K. Heffernan); (16) "Health-Related Disorders" (L. Peterson, K. Reach, and S. Grabe). (Each chapter contains extensive references.) (GCP)