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Titre du document / Document title

Famous artefacts : Spearman's hypothesis. Author's reply

Auteur(s) / Author(s)

SCHÖNEMANN P. H. (1) ; GARRIGA-TRILLO A. (Commentateur) (2) ; HAY D. A. (Commentateur) (3) ; HIRSCH J. (Commentateur) (4) ; HORN J. (Commentateur) (5) ; HUMPHREYS L. G. (Commentateur) (6) ; KADLEC H. (Commentateur) (7) ; MARAUN M. D. (Commentateur) (8) ; MILLSAP R. E. (Commentateur) (9) ; NAGOSHI C. T. (Commentateur) (9) ; STEIGER J. H. (Commentateur) (10) ; STERNBERG R. J. (Commentateur) (11) ; GRIGORENKO E. L. (Commentateur) (11) ; TURKHEIMER E. (Commentateur) (12) ; WAHLSTEN D. (Commentateur) (1 13) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) National Taiwan University, TAIWAN, PROVINCE DE CHINE
(2) Psychology Faculty, UMED, Madrid, ESPAGNE
(3) Curtin University of Technology, ETATS-UNIS
(4) University of Illinois at Urbana-Champaign, ETATS-UNIS
(5) University of Southern California, Champaign, ETATS-UNIS
(6) University of Illinois, Champaign, ETATS-UNIS
(7) University of Victoria, CANADA
(8) Simon Fraser University, Tempe, ETATS-UNIS
(9) Arizona State University, Tempe, ETATS-UNIS
(10) University of British Columbia, ETATS-UNIS
(11) Yale University, Edmonton, ETATS-UNIS
(12) University of Virginia, ETATS-UNIS
(13) University of Alberta, Edmonton, CANADA

Résumé / Abstract

In a number of publications, Jensen has recalled Spearman's (1927, p. 379) observation that the loadings of the first principal component (PC1) of various 'intelligence tests' tend to correlate positively with the corresponding Black/White mean differences ('Spearman's Hypothesis'). Jensen believes this sheds light on the true nature of g, Level II Ability, test bias, and Black/White differences. His claims have been warmly welcomed in some quarters (most recently by Herrnstein and Murray, 1994) as conclusive confirmation of the Black inferiority myth. Here it is shown by way of empirical, numerical, geometric, and algebraic demonstrations that the positive correlations predicted by Spearman's hypothesis are psychometric artefacts which also arise (a) with measures which have nothing to do with 'general ability', for example, the number of toys and books a child has; and, more generally, (b) with any set of moderately correlated random data, once the sample is split into high and low groups. Specifically, this interpretation predicts that if sample sizes differ substantially, then the correlation will be larger for the PC1 of the larger group. This prediction is borne out both in simulated and in 'real' data sets, including Jensen's.

Revue / Journal Title

Cahiers de psychologie cognitive    ISSN  0249-9185   CODEN CPCODE 

Source / Source

1997, vol. 16, no6, pp. 665-812 (6 p.)

Langue / Language

Anglais

Editeur / Publisher

Association pour la diffusion des recherches en sciences cognitives, Marseille, FRANCE  (1981) (Revue)

Mots-clés anglais / English Keywords

Critical study

;

Race

;

Genetic determinism

;

Intellectual ability

;

Intelligence quotient

;

Intelligence test

;

Factor analysis

;

Negroid

;

Caucasoid

;

Racism

;

Artefact

;

Cognition

;

Psychometrics

;

Human

;

Mots-clés français / French Keywords

Etude critique

;

Race

;

Déterminisme génétique

;

Aptitude intellectuelle

;

Quotient intellectuel

;

Test intelligence

;

Analyse factorielle

;

Négroïde

;

Caucasoïde

;

Racisme

;

Artefact

;

Cognition

;

Psychométrie

;

Homme

;

Facteur g Spearman

;

Mots-clés espagnols / Spanish Keywords

Estudio crítico

;

Raza

;

Determinismo genético

;

Aptitud intelectual

;

Cociente intelectual

;

Prueba inteligencia

;

Análisis factorial

;

Negroide

;

Caucásico

;

Racismo

;

Artefacto

;

Cognición

;

Psicometría

;

Hombre

;

Localisation / Location

INIST-CNRS, Cote INIST : 10395, 35400007783245.0010

Nº notice refdoc (ud4) : 2098867



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