Clark McCauley is Professor of Psychology at Bryn Mawr College, a director of the Solomon Asch Center for Study of Ethnopolitical Conflict at the University of Pennsylvania, and a co-director of the National Consortium for Study of Terrorism and Responses to Terrorism (NC START). He received his Ph.D. in social psychology from the University of Pennsylvania in 1970. 

His research interests include stereotypes and the psychology of group identification, group dynamics and intergroup conflict, and the psychological foundations of ethnic conflict and genocide. With colleagues he edited The psychology of ethnic and cultural conflict (2004), and with Dan Chirot he is author of Why not kill them all? The logic and prevention of mass political murder (2006). 

He is a consultant and reviewer for the Harry Frank Guggenheim Foundation for research on dominance, aggression and violence, a member of the American Psychological Association Task Force on Reaction to Terrorism, and Chair of the Subcommittee on Ethnopolitical Violence of the Policy Committee of the International Association of Applied Psychology.

McCauley has been a member of ISPP since 1987. He believes there is a lot of gold yet undiscovered in the hills between social psychology and political science.