Titre du document / Document title

Temperature, skin color, per capita income, and IQ : An international perspective. Commentary

Auteur(s) / Author(s)

TEMPLER Donald I. ⁽¹⁾ ; ARIKAWA Hiroko ⁽²⁾ ; JENSEN Arthur R. (Commentateur (texte écrit)) ⁽³⁾ ; HUNT Earl (Commentateur (texte écrit)) ⁽⁴⁾ ; STERNBERG Robert J. ;

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

⁽¹⁾ California School of Professional Psychology-Fresno, Alliant International University, ETATS-UNIS
⁽²⁾ Forest Institute of Professional Psychology, Springfield, MO, ETATS-UNIS
⁽³⁾ University of California, Berkeley, ETATS-UNIS
⁽⁴⁾ University of Washington, ETATS-UNIS

Résumé / Abstract

The impetus for our study was the contention of both Lynn and Rushton that persons in colder climates tend to have higher IQs than persons in warmer climates. We correlated mean IQ of 129 countries with per capita income, skin color, and winter and summer temperatures, conceptualizing skin color as a multigenerational reflection of climate. The highest correlations were - 0.92 (rho=-0.91) for skin color, -0.76 (rho=-0.76) for mean high winter temperature, -0.66 (rho=-0.68) for mean low winter temperature, and 0.63 (rho=0.74) for real gross domestic product per capita. The correlations with population of country controlled for are almost identical. Our findings provide strong support for the observation of Lynn and of Rushton that persons in colder climates tend to have higher IQs. These findings could also be viewed as congruent with, although not providing unequivocal evidence for, the contention that higher intelligence evolves in colder climates. The finding of higher IQ in Eurasians than Africans could also be viewed as congruent with the position of Diamond (1997) that knowledge and resources are transmitted more readily on the Eurasian west-east axis.

Revue / Journal Title

Intelligence   ISSN 0160-2896   CODEN NTLLDT 

Source / Source

2006, vol. 34, n^o2, pp. 121-139 [19 page(s) (article)] (38 ref.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Orlando, FL, ETATS-UNIS  (1977) (Revue)

Mots-clés anglais / English Keywords

Environmental factor ; Human ; Ethnic group ; Climate ; Room temperature ; Critical study ; Intelligence quotient ; Intellectual ability ; Race ;

Mots-clés français / French Keywords

Facteur milieu ; Revenu par tête ; Homme ; Ethnie ; Climat ; Température ambiante ; Etude critique ; Quotient intellectuel ; Aptitude intellectuelle ; Race ;

Mots-clés espagnols / Spanish Keywords

Factor medio ; Hombre ; Etnia ; Clima ; Temperatura ambiente ; Estudio crítico ; Cociente intelectual ; Aptitud intelectual ; Raza ;

Localisation / Location

INIST-CNRS, Cote INIST : 18063, 35400011518553.0010