SES by Heritability Interactions for Intelligence

SES by Heritability Interactions for Intelligence

Since the publication of this paper in 2003, our lab has been actively involved in analyses of how poverty effects genetic variability in intelligence.  That study showed that in the National Collaborative Perinatal Project, a large representative sample of mothers and their children in the US, the heritability of IQ in seven year olds was very low among the poorest twins and very high among the best off.  Similar findings had been published previously by Sandra Scarr, David Rowe and Kristen Jacobson.  Since that time, we have followed up on that result in many datasets.  The effect appears to be replicable in US samples, but not in other Western (mostly European) nations.

Eric Turkheimer
ent3c@virginia.edu

Eric Turkheimer is the Project Leader for the Genetics and Human Agency Project. Eric is a clinical psychologist and behavioral geneticist. For thirty years he has been involved in empirical and theoretical investigations of the implications of genetics for the genesis of complex human behavior. Current projects include understanding the interaction between socioeconomic status and the heritability of intelligence, and philosophical analysis of the ethical status of work that purports to demonstrate biologically based differences in behavior among racial groups.

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