ABSTRACT

Morton Deutsch is a leader among leaders for his original theorizing and empirical research validating foundations for cooperative learning, conflict resolution, and peace education in schools and other organizational settings. This chapter provides insight into the life, work, and legacy of Morton Deutsch, recognized as one of the 100 most eminent psychologists of the 20th century. It begins by describing early influences and lived experiences that contributed to Mort’s tough-minded, tender-hearted posture as a scientist committed to understanding how various conditions affect social-psychological processes that underpin human relations and group dynamics at interpersonal, intergroup, and international levels.

Deutsch’s original research demonstrated that cooperation was more effective than competition among students working in small groups. Replicated many times in experimental comparisons, this became a cornerstone in the development of cooperative learning approaches and provided a strong theoretical foundation for the cooperative learning movement.

The chapter summarizes Mort’s hallmark theories on cooperation and competition, constructive conflict resolution, and distributive justice-all integral to his framework on oppression and how to bring about change for a just and humane world. It also suggests actions for applying and advancing Deutsch’s theories and research in our own personal and professional contexts, thereby living his legacy toward a hopeful future.