Best Psychometrics
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Charles Spearman was a British psychologist and statistician who made foundational contributions to intelligence testing and psychometrics. From patterns of positive correlation among different mental tests, he proposed a general intelligence factor, called g, alongside abilities specific to individ...
Lewis R. Goldberg was an American personality psychologist known for research on the lexical approach to personality structure. He helped establish the term Big Five for five broad dimensions repeatedly found in analyses of personality describing words, commonly labeled extraversion, agreeableness,...
Robert R. McCrae is an American personality psychologist known for research on stable individual differences across adulthood and cultures. Working extensively with Paul T. Costa Jr., he helped develop the five-factor model of personality and the NEO inventories, which assess neuroticism, extraversi...
Raymond Cattell was a British-American psychologist known for applying factor analysis to the study of personality, intelligence, and motivation. He proposed sixteen primary personality factors and developed the Sixteen Personality Factor Questionnaire, commonly called the 16PF, to measure them. Cat...
Louis Leon Thurstone (1887-1955) was an American psychologist and psychometrician who made influential contributions to factor analysis, intelligence testing, and attitude measurement. He proposed that intelligence could be described through several primary mental abilities, including verbal compreh...
Dutch-American personality psychologist at the University of Minnesota who developed the Multidimensional Personality Questionnaire (MPQ) and conducted landmark twin research on personality heritability.
Hans Eysenck (1916–1997) was a German-British psychologist who developed a influential three-factor personality model (extraversion, neuroticism, psychoticism) and was a prominent critic of Freudian psychoanalysis.
Linda Gottfredson is an American psychologist known for research on the practical importance of g and her theory of circumscription and compromise in career development.
Arthur Jensen (1923–2012) was an American educational psychologist whose 1969 Harvard Educational Review article controversially argued for genetic influences on group IQ differences.
