Deborah Feltz, PhD, is professor and chairperson of the department of kinesiology at Michigan State University in East Lansing. She has devoted more than 30 years to researching the relationship between self-efficacy and sport performance.

Dr. Feltz has written more than 70 publications on the topic. Her dissertation focused on self-efficacy and was published in the prestigious Journal of Personality and Social Psychology in 1982. She was invited to write the first review of her research on self-confidence and sport performance for Exercise and Sport Sciences Reviews in 1988. In 1986, while on sabbatical at Stanford University, she studied with Albert Bandura, who triggered her interest in the concept of team efficacy. She is an American Psychological Association fellow, former president of the American Academy of Kinesiology and Physical Education, and president-elect of the North American Society for the Study of Sport and Physical Activity. She earned her PhD in physical education and sport psychology from Pennsylvania State University. Her major professor was Daniel M. Landers.

Sandra Short, PhD, is a professor and chairperson of the department of physical education, exercise science, and wellness at the University of North Dakota in Grand Forks, where she also holds an adjunct appointment in the psychology department. She is the recipient of several scholarships and awards, including the Franklin Henry Young Scientist Award and a New Faculty Scholar Award. Dr. Short is an associate editor for The Sport Psychologist, the founding coeditor for the Journal of Imagery Research in Sport and Physical Activity, and a guest reviewer for 15 different journals. She has coauthored more than 25 peer-reviewed articles, mostly focused on efficacy beliefs and imagery. She has been the advisor to more than 25 master's degree students. She earned her PhD in the psychosocial aspects of sport and physical activity from Michigan State University.

Philip Sullivan, PhD, is associate professor in the department of physical education and kinesiology at Brock University in St. Catharines, Ontario, Canada. He is a research fellow with the Coaching Association of Canada, coeditor of the International Journal of Coaching Science , and codirector of the Center for Healthy Development Through Sport and Physical Activity.

Dr. Sullivan has coauthored more than 25 peer-reviewed articles, most of them focusing on coaching and team efficacy. He coauthored with Dr. Feltz a chapter on applying social psychology to sport teams, which appeared in the book Applied Social Psychology . He earned a PhD with specialization in sport psychology and degrees in psychology and human kinetics. Dr. Sullivan is a certified rugby coach with 15 years of experience.