Intelligence researchers

Raymond Bernard Cattell (20 March 1905 – 2 February 1998) was a British and American psychologist, known for his psychometric research into intrapersonal psychological structure. His work also explored the basic dimensions of personality and temperament, the range of cognitive abilities, the dynamic dimensions of motivation and emotion, the clinical dimensions of abnormal personality, patterns of group syntality and social behavior, applications of personality research to psychotherapy and learning theory, predictors of creativity and achievement, and many multivariate research methods including the refinement of factor analytic methods for exploring and measuring these domains. Cattell authored, co-authored, or edited almost 60 scholarly books, more than 500 research articles, and over 30 standardized psychometric tests, questionnaires, and rating scales. According to a widely cited ranking, Cattell was the 16th most eminent, 7th most cited in the scientific journal literature, and among the most productive psychologists of the 20th century. He was, however, a controversial figure, due in part to his friendships with and intellectual respect for white supremacists and neo-Nazis.

David Wechsler (January 12, 1896 – May 2, 1981) was a Romanian-American psychologist. He developed well-known intelligence scales, such as the Wechsler Adult Intelligence Scale (WAIS) and the Wechsler Intelligence Scale for Children (WISC). A Review of General Psychology survey, published in 2002, ranked Wechsler as the 51st most cited psychologist of the 20th century.

Andreas Demetriou (Greek: Ανδρέας Δημητρίου; born Andreas Panteli Demetriou on 15 August 1950) is a Greek Cypriot developmental psychologist and former Minister of Education and Culture of Cyprus. Founding Fellow, Cyprus Academy of Sciences, Letters, and Arts.

Anne Anastasi (December 19, 1908 – May 4, 2001) was an American psychologist best known for her pioneering development of psychometrics. Her generative work, Psychological Testing, remains a classic text in which she drew attention to the individual being tested and therefore to the responsibilities of the testers. She called for them to go beyond test scores, to search the assessed individual's history to help them to better understand their own results and themselves.

Anthony F. Gregorc is an American who has taught educational administration. He is best known for his theory of a Mind Styles Model and its associated Style Delineator. The model tries to match education to particular learning styles. One British study said that the evidence for a variety of learning style models is "highly variable".

Thomas J. Bouchard Jr. (born October 3, 1937) is an American psychologist and geneticist. He is professor emeritus of psychology and director of the Minnesota Center for Twin and Adoption Research at the University of Minnesota. Bouchard received his PhD from the University of California, Berkeley in 1966.

Philip Ewart Vernon (6 June 1905 – 28 July 1987) was a British-born Canadian psychologist and author. He studied intellectual ability with a focus on race and intelligence.

Leon J. Kamin (December 29, 1927 – December 22, 2017) was an American psychologist known for his contributions to learning theory and his critique of estimates of the heritability of IQ. He studied under Richard Solomon at Harvard and contributed several important ideas about conditioning, including the "blocking effect".

Henry Herbert Goddard (August 14, 1866 – June 18, 1957) was a prominent American psychologist and eugenicist during the early 20th century. He is known especially for his 1912 work The Kallikak Family: A Study in the Heredity of Feeble-Mindedness, which he himself came to regard as flawed, and for being the first to translate the Binet intelligence test into English in 1908 and distributing an estimated 22,000 copies of the translated test across the United States. He also introduced the term "moron" for clinical use.

Richard Julius Herrnstein (May 20, 1930 – September 13, 1994) was an American psychologist at Harvard University. He was an active researcher in animal learning in the Skinnerian tradition. Herrnstein was the Edgar Pierce Professor of Psychology until his death, and previously chaired the Harvard Department of Psychology for five years. With political scientist Charles Murray, he co-wrote The Bell Curve, a controversial 1994 book on human intelligence. He was one of the founders of the Society for Quantitative Analysis of Behavior.