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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. 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.

  3. 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.

    • John J. McArdle, Scott M. Hofer
    • 10.1080/00273171.2013.841089
    • 2014
    • 2014
  4. 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.

  5. Jan 22, 2014 · The Cattell-Horn-Carroll (CHC) theory of cognitive abilities is the most comprehensive and empirically supported psychometric theory of the structure of cognitive abilities to date.

    • Dawn P. Flanagan, Shauna G. Dixon
    • 2014
  6. 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...

  7. JOHN L. HORN University of Denver THE THEORETICAL BASIS FOR THE RESEARCH Several important theories about human abilities contend in the field today. Salient features of these theories have been explicated and critically evaluated in several recent publications. For example, Horn (1972, 1976, 1977a, 1977b, 1978a,