His research interests center on the commitment, motivation, and performance of individuals and teams through the study of workplace commitments, socialization, goal setting, training, and performance management. Professor Klein has authored more than 65 articles and book chapters and made over 80 presentations at scholarly conferences on these and other topics. He has also edited a book on Commitment in Organizations. His articles have been published in outlets including the Academy of Management Review, Academy of Management Journal, Journal of Applied Psychology, and Personnel Psychology and, according to Google Scholar, have been cited over 14,000 times. Professor Klein has received multiple awards each for his research, teaching, and service. He teaches courses in talent acquisition, training and development, HR analytics, human resource management, organizational behavior, and research methods at the undergraduate, masters, and doctoral levels. Professor Klein served as Editor-in-Chief for Human Resources Management Review and serves, or has served, on several other editorial review boards including the Academy of Management Discoveries, Journal of Applied Psychology, Organizational Behavior and Human Decision Processes, and Personnel Psychology. He is a past Chair of the Human Resources Division of the Academy of Management and served on the Board of Directors for the Society for Human Resource Management (SHRM) Foundation and was Board Chair. Professor Klein is a fellow of the American Psychological Association, the Association for Psychological Science, and the Society for Industrial and Organizational Psychology and a member of the Society of Organizational Behavior.