Richard Ryan PhD is a professor of psychology psychiatry and education holding appointments at the Warner School and in the Department of Clinical and Social Sciences in Psychology. He is an award-winning teacher and researcher earning the Phi Delta Kappa award twice for research contribution in education. Ryan is a widely published researcher and theorist in the areas of human motivation development and psychological well-being having published over 300 articles and chapters and two books. He is the co-developer of Self-Determination Theory a widely researched general theory of human motivation that has been applied to such areas as education counseling health care work sport and exercise and psychotherapy. See all resources by Richard Ryan.