Stephen J. Zaccaro is a professor of psychology at George Mason University, Fairfax, Virginia. Previously, he served on the faculty of Virginia Polytechnic Institute and State University, and of the College of the Holy Cross. He received his PhD in social psychology from the University of Connecticut. He has been studying, teaching, and consulting about teams and leadership for over 25 years. He has written over 100 articles, book chapters, and technical reports on group dynamics, team performance, leadership, and work attitudes. He has written a book titled, The Nature of Executive Leadership: A Conceptual and Empirical Analysis of Success
(2001) and co-edited three other books, Occupational Stress and Organizational Effectiveness
(1987), The Nature of Organizational Leadership: Understanding the Performance Imperatives Confronting Today's Leaders
(2001), and Leader Development for Transforming Organizations (2004).
He has also co-edited a special issue of Group and Organization Management
on the interface between leadership and team dynamics, and special issues of Leadership Quarterly
on individual differences and leadership. He has directed funded research projects in the areas of team performance, shared mental models, leader-team interfaces, leadership training and development, leader adaptability, and executive leadership. He has consulted for projects on developing leader assessment tools, constructing leadership training systems, and on measuring performance in human-robot team systems. He is also an experienced leadership coach.