Psychology? It's all in the mind.
(born May 29, 1887, Chicago, Ill, U.S.died Sept. 29, 1955, Chapel Hill, N.C.) U.S. psychologist. He taught primarily at the University of Chicago (192752). Concerned with the measurement of people's attitudes and intelligence, he was instrumental in the development of psychometrics. His principal work, (1935; revised as , 1947), presented the technique of multiple-factor analysis to explain correlations between results in psychological tests.
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