Michel Hersen, Ph.D., ABPP, Editor-in-Chief, is Professor and Dean of the School of Professional Psychology at Pacific University in Forest Grove, Oregon. He has edited numerous books, including the Comprehensive Handbook of Psychological Assessment, 4-volume set (Wiley), the Comprehensive Handbook of Personality and Psychopathology, three-volume set (with Jay C. Thomas, Wiley), and Adult Psychopathology and Diagnosis, now in its fifth edition (with Samuel Turner, Wiley). David Reitman, Ph.D., Volume 2 editor, is Associate Professor of Psychology at Nova Southeastern University in Fort Lauderdale, Florida.