Orval Hobart Mowrer

Orval Hobart Mowrer (January 23, 1907 – June 20, 1982) was an American psychologist and professor of psychology at the University of Illinois from 1948 to 1975 known for his research on behaviour therapy. Mowrer practiced psychotherapy in Champaign-Urbana and at Galesburg State Research Hospital. In 1954 Mowrer held the position of president of the American Psychological Association. Mowrer founded Integrity Groups (therapeutic community groups based on principles of honesty, responsibility, and emotional involvement) and was instrumental in establishing GROW groups in the United States. A Review of General Psychology survey, published in 2002, ranked Mowrer as the 98th most cited psychologist of the 20th century.