Large Cross-National Differences in Gene × Socioeconomic Status Interaction on Intelligence

Citation

Tucker-Drob, Elliot M. & Bates, Timothy C. (2015). Large Cross-National Differences in Gene × Socioeconomic Status Interaction on Intelligence. Psychological Science. vol. 27 (2) pp. 138-149

Abstract

A core hypothesis in developmental theory predicts that genetic influences on intelligence and academic achievement are suppressed under conditions of socioeconomic privation and more fully realized under conditions of socioeconomic advantage: a Gene × Childhood Socioeconomic Status (SES) interaction. Tests of this hypothesis have produced apparently inconsistent results. We performed a meta-analysis of tests of Gene × SES interaction on intelligence and academic-achievement test scores, allowing for stratification by nation (United States vs. non–United States), and we conducted rigorous tests for publication bias and between-studies heterogeneity. In U.S. studies, we found clear support for moderately sized Gene × SES effects. In studies from Western Europe and Australia, where social policies ensure more uniform access to high-quality education and health care, Gene × SES effects were zero or reversed.

URL

http://dx.doi.org/10.1177%2F0956797615612727

Keyword(s)

behavior genetics

Reference Type

Journal Article

Journal Title

Psychological Science

Author(s)

Tucker-Drob, Elliot M.
Bates, Timothy C.

Year Published

2015

Volume Number

27

Issue Number

2

Pages

138-149

DOI

10.1177/0956797615612727

NIHMSID

NIHMS727226

Reference ID

7211