Implications of the Cattell-Horn-Carroll theory on ethnic differences in IQ

    Authors

    O. W. Edwards;D. P. Fuller

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Psychol. Rep.

    Keywords

    ACHIEVEMENT; ABILITIES; FLUID; Psychology, Multidisciplinary

    Abstract

    The Cattell-Horn-Carroll theory of intelligence and the Spearman-Jensen hypothesis were applied to help interpret mean IQ differences among ethnic groups. The Cattell-Horn-Carroll theory classifies cognitive abilities on three strata, which differ by magnitude of generality including specific, broad, and general abilities. The Spearman-Jensen hypothesis advances the belief that mean IQ differences between African Americans and Euro-Americans occur as a function of the test's g loadings. Although IQ differences between African Americans and Euro-Americans occur, the differences should be larger on tests with higher g loadings and smaller on tests with lower g loadings. The analysis described in this paper may serve as the catalyst to encourage all intelligence test publishers to supply test users with data regarding mean IQ differences among various ethnic groups.

    Journal Title

    Psychological Reports

    Volume

    97

    Issue/Number

    3

    Publication Date

    1-1-2005

    Document Type

    Article

    Language

    English

    First Page

    891

    Last Page

    897

    WOS Identifier

    WOS:000235108300030

    ISSN

    0033-2941

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