Robert Richardson Sears (/sɪərz/; August 31, 1908 – May 22, 1989) was an American psychologist who specialized in child psychology and the psychology of personality. He was the head of the psychology department at Stanford and later dean of the School of Humanities and Sciences there, continued the long-term I.Q. studies of Lewis Madison Terman at Stanford, and authored many pivotal papers and books on various aspects of psychology.