National IQs predict differences in scholastic achievement in 67 countries.

Full Abstract

This paper examines the relationship of the national IQs reported by Lynn & Vanhanen (2002, 2006) to national achievement in mathematics and science among 8th graders in 67 countries. The correlation between the two is 0.92 and is interpreted as establishing the validity of the national IQs. The correlation is so high that national IQs and educational achievement appear to be measures of the same construct. National differences in educational achievement are greater than differences in IQ, suggesting an amplifier effect such that national differences in IQs amplify differences in educational achievement. Controlling for national differences in IQ, slight inverse relationships of educational achievement are observed with political freedom, subjective well-being, income inequality, and GDP. However, public expenditure on education (as % of GDP) was not a significant predictor of differences in educational achievement.

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Author information

Author/s: Lynn, Richard (R); Meisenberg, Gerhard (G); Mikk, Jaan (J); Williams, Amandy (A);

Affiliation: University of Ulster, Coleraine, Northern Ireland.

Journal and publication information

Publication Type: Journal Article

Journal: Journal of biosocial science (J Biosoc Sci), published in England. (Language: eng)

Reference: 2007-Nov; vol 39 (issue 6) : pp 861-74

Dates: Created 2007/09/28; Completed 2008/01/08;

PMID: 17381890, status: MEDLINE (last retrieval date: 11/6/2008)

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