Dr. Robert Hogan is preeminent among a relatively small group of psychologists dedicated to personality assessment. He launched his 40-year career at Johns Hopkins University, ultimately moving to Tulsa University where he served as Dean of the Department of Psychology. Now in private practice in Tulsa he counsels companies, organizations, public and private, on integrating personality evaluations into managerial processes. His book, Personality and the Impact On Organizations is considered the definitive book on the subject. He has amassed personality behavior data on more than one million individuals.