Article
Reconsidering the heritability of intelligence in adulthood: taking assortative mating and cultural transmission into account.
Behavior genetics - 1 Mar 2012
Vinkhuyzen Anna A E, van der Sluis Sophie, Maes Hermine H M, Posthuma Danielle
Abstract excerpt
Heritability estimates of general intelligence in adulthood generally range from 75 to 85%, with all heritability due to additive genetic influences, while genetic dominance and shared environmental factors are absent, or too small to be detected. These estimates are derived from studies based on the classical twin design and are based on the assumption of random mating. Yet, considerable positive assortative...
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