PhD - Social and organizational psychology, Teachers College, Columbia University
BA - Education, Antioch College, Yellow Springs, Ohio.
My research concerns the social psychology of conflict and injustice. I am interested in antecedents and process of moral exclusion, when a narrow scope of justice leads people to see others as outside the scope of justice and therefore as eligible targets of violence, exploitation, and harm. I also study moral inclusion, when rights and resources are extended more broadly within a society to promote social justice. These studies are situated within a variety of social conflicts including environmental protection and degradation, student disengagement in high school, violence and hate, and the post-disaster and post-war period. I am Editor of Peace and Conflict: Journal of Peace Psychology, served as president of the Society for the Psychological Study of Social Issues, and am a Fellow of the American Psychological Association and three of its divisions.