Jerry W. Hedge, PhD , has been involved in personnel research for more than 25 years. He has worked with a wide variety of clients designing, implementing, and evaluating numerous organizational tools, systems, and techniques. During his career, Dr. Hedge has stayed actively involved in publishing his research and presenting regularly at professional conferences. He is a fellow of the Society for Industrial and Organizational Psychology and the American Psychological Association. He received his PhD in industrial-organizational psychology from Old Dominion University, Norfolk, Virginia. Walter C.

Borman, PhD , is currently the chief executive officer of Personnel Decisions Research Institutes, Tampa, Florida, and professor of industrial-organizational psychology at the University of South Florida. He is a fellow of the Society for Industrial and Organizational Psychology (SIOP), and in 1994-1995 served as president of the society. Dr. Borman has written more than 300 books, book chapters, journal articles, and conference papers, and he was the recipient of SIOP's Distinguished Scientific Contributions Award for 2003. He received his PhD in industrial-organizational psychology from the University of California, Berkeley. Steven E. Lammlein, PhD , is an industrial-organizational psychologist with 27 years of experience in human resources research and consulting. He has consulted with a large variety of private- and public-sector clients, and his work has addressed workforce issues in a wide variety of jobs across the occupational spectrum.

His specialty areas include personnel selection and placement, certification testing, equal employment opportunity issues, job and training needs analysis, management development and succession planning, training design and evaluation, and performance management. He received his PhD from the University of Minnesota, Twin Cities.