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David M. Corey, PhD, is a practicing psychologist in Portland, Oregon, with more than 40 years of experience conducting suitability and fitness evaluations for police and other public safety positions. He is coauthor of the MMPI-3 Public Safety Candidate Interpretive Reports, as well as other peer-reviewed books, chapters, and journal articles on assessing public safety personnel.

Yossef S. Ben-Porath, PhD, is professor emeritus of psychological sciences at Kent State University and a board-certified clinical psychologist. He has been involved extensively in MMPI research for more than 38 years, codeveloping the MMPI-3 and coauthoring many test manuals, books, book chapters, and articles on the MMPI instruments.