Ross W. Greene, PhD, is founder and director of Lives in the Balance and the originator of the Collaborative & Proactive Solutions approach, as described in his books The Explosive Child and Lost at School. He is also adjunct Associate Professor in the Department of Psychology at Virginia Tech. In addition to providing outpatient care, he consults to schools, inpatient units, and residential and juvenile detention facilities. Dr. Greene's research focuses on the classification and treatment of explosive children; long-term outcomes in socially impaired children with attention-deficit/hyperactivity disorder (ADHD); and the impact of teacher characteristics on school outcome for elementary school students with ADHD. He has written extensively on behavioral assessment and social functioning; school- and home-based interventions for children with disruptive behavior disorders; and student-teacher compatibility. His research has been funded by the Stanley Medical Research Institute, the National Institute on Drug Abuse, and the U.S. Department of Education. Dr. Greene received his doctorate in clinical psychology from Virginia Tech after completing his predoctoral internship at Children's National Medical Center/George Washington University Medical Center in Washington, DC. J. Stuart Ablon, PhD, is the Director of Think:Kids in the Department of Psychiatry at Massachusetts General Hospital, where he specializes in the treatment of explosive children and adolescents and their families. He is also Associate Clinical Professor of Psychology in the Department of Psychiatry at Harvard Medical School. He consults extensively to schools, inpatient units, and residential and juvenile detention facilities. Dr Ablon's research focuses on the process and outcome of psychosocial interventions, particularly the treatment of explosive children. He has authored numerous articles, chapters, and scientific papers on behavioral assessment and psychosocial interventions for children with disruptive behavior disorders. Dr. Ablon's research has been funded by the National Institutes of Health, the American Psychological Association, the Mood and Anxiety Disorders Institute, and the Endowment for the Advancement of Psychotherapy. Dr. Ablon received his doctorate in clinical psychology from the University of California at Berkeley and completed his pre- and postdoctoral training at Massachusetts General Hospital and Harvard Medical School.