Yossef S. Ben-Porath is professor of psychological sciences at Kent State University. A board-certified clinical psychologist, he has been involved extensively in MMPI research for the past thirty-seven years. He is codeveloper of the MMPI-3, MMPI-2-RF, and MMPI-A-RF and coauthor of test manuals, books, book chapters, and articles on the MMPI instruments.
Martin Sellbom is professor in clinical psychology at the University of Otago in Dunedin, New Zealand, and editor-in-chief for the Journal of Personality Assessment. His work has been featured in nearly three hundred publications, with a large proportion focusing on the MMPI instruments. He has received awards from the American Psychological Foundation, the American Psychology-Law Society, and the Society for Personality Assessment.
