Elliot M. Tucker?Drob|Timothy C. Bates
Large Cross-National Differences in Gene × Socioeconomic Status Interaction on Intelligence
The University of Texas at Austin|University of Edinburgh
core hypothesis developmental theory predicts genetic influences intelligence academic achievement suppressed conditions socioeconomic privation fully realized conditions socioeconomic advantage gene childhood socioeconomic status ses interaction tests hypothesis produced apparently inconsistent results performed metaanalysis tests gene ses interaction intelligence academicachievement test scores allowing stratification nation united states vs nonunited states conducted rigorous tests publication bias betweenstudies heterogeneity us studies found clear support moderately sized gene ses effects studies western europe australia social policies ensure uniform access highquality education health care gene ses effects zero reversed