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  1. John Leonard Horn (September 7, 1928 – August 18, 2006) was a scholar, cognitive psychologist and a pioneer in developing theories of intelligence. The Cattell-Horn- Carroll (CHC) theory is the basis for many modern IQ tests.

  2. John Leonard Horn was born in St. Joseph, Missouri, on September 7, 1928, and he died in Los Angeles, California, on August 18, 2006. John Horn was a world-renowned scholar of immense intellect, and he was highly respected in his time.

  3. Aug 18, 2006 · John L. Horn began college with the goal of becoming a high school mathematics and chemistry teacher. His first love was psychology, however, which he construed as the study of the personalities of people.

  4. John L. Horn (1928–2006) was a pioneer in multivariate thinking and the application of multivariate methods to research on intelligence and personality. His key works on individual differences in the methodological areas of factor analysis and the substantive areas of cognition are reviewed here.

  5. Read about Dr. John L. Horn and his contributions in an article from the USC College website and also in an obituary by John J. McArdle.

  6. Jan 22, 2014 · The integrated model presented by McGrew and colleagues was accepted by both John Horn and John Carroll and thus became known as the Cattell-Horn-Carroll (CHC) theory, reflecting the order in which these theorists made their contributions.

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  8. Feb 18, 2014 · John L. Horn (1928-2006) was a pioneer in multivariate thinking and the application of multivariate methods to research on intelligence and personality. His key works on...