
author
1877–1956
Best known for adapting the Binet intelligence scale into the Stanford-Binet test, this influential psychologist also launched a landmark long-term study of gifted children. His work helped shape early educational psychology in the United States, even as parts of his legacy remain deeply controversial today.

by Lewis M. (Lewis Madison) Terman

by Lewis M. (Lewis Madison) Terman

by Truman Lee Kelley, G. M. (Giles Murrel) Ruch, Lewis M. (Lewis Madison) Terman
Born in Johnson County, Indiana, in 1877, Lewis Madison Terman became one of the most prominent American psychologists of the early 20th century. He earned degrees from Indiana University and Clark University, then joined Stanford, where he built his career in psychology and education.
He is most widely remembered for revising and popularizing the intelligence test that became known as the Stanford-Binet. Terman also began a major longitudinal study of gifted children, often called the "Termites" study, which continued long after his death and influenced research on intelligence, achievement, and child development.
Terman's reputation today is mixed. Alongside his contributions to testing and educational psychology, historians and reference works note his support for eugenic ideas, a reminder that important scientific figures can also be shaped by harmful beliefs of their time.