Lewis Madison Terman (January 15, 1877 – December 21, 1956) was an American psychologist, noted as a pioneer in educational psychology in the early 20th century at the Stanford University School of Education. He is best known as the inventor of the Stanford-Binet IQ test and the initiator of the longitudinal study of children with high IQs called the Genetic Studies of Genius.Sears, R. R. (1957). L. M. Terman, pioneer in mental measurement. Science, 125, 978-979. doi:10.1126/science.125.3255.978 He was a prominent eugenicist and was a member of the Human Betterment Foundation. He also served as president of the American Psychological Association.