Judd, Charles Hubbard, 1873–1946, American psychologist, b. India. He was educated at the Univ. of Leipzig (Ph.D., 1896), where he studied with Wilhelm Wundt. Judd taught at the Univ. of Cincinnati, Yale Univ., and the Univ. of Chicago, where he was director of the department of education from 1909 until his retirement in 1938. Judd was a leading figure in the development of a "science" of education. He wrote a monograph on education for President Herbert Hoover's Commission on Social Trends. Judd's writings include Genetic Psychology for Teachers (1903) and Psychology of Social Institutions (1926).