B. F. SkinnerBurrhus Frederic Skinner (1904–1990), regarded by many as the most important and influential psychologist since Freud, earned his doctorate in psychology at Harvard University in 1931. Following appointments at the University of Minnesota and Indiaa University, he returned to Harvard in 1948. He remained there for the rest of his career, retiring in 1974 as Edgar Pierce Professor of Psychology. Read More Read Less