Irving B. Weiner, PhD, is Clinical Professor of Psychiatry and behavioral Medicine at the University of South Florida and former Director of Psychological Services at the University of South Florida Psychiatry Center in Tampa, Florida. He is a Fellow of the American Psychological Association and of the Association for Psychological Science, a Diplomat of the American board of Professional Psychology in both Clinical and Forensic Psychology, and a licensed psychologist in the state of Florida and is in the practice of clinical and forensic psychology. He is the author of numerous articles and books, and Editor-in-Chief of the 12-volume Handbook of Psychology.

Roger L. Greene, PhD, is a professor at the Pacific Graduate School of Psychology in Palo Alto, California, where he served as Director of Clinical Training for twelve years. Dr. Greene has worked in a variety of clinical settings and with different types of patients in his clinical career. His particular area of interest is the assessment and treatment of alcohol and drug abuse. He has written a number of texts and articles on the use of the MMPI-2.