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. 1992 Mar;22(2):153-62.
doi: 10.1007/BF01066994.

Differential Heritability Across Levels of Cognitive Ability


Differential Heritability Across Levels of Cognitive Ability

S S Cherny et al. Behav Genet. .


Differences in heritability and shared environmentality across levels of cognitive ability were assessed in a sample of 264 twin pairs tested at 1 year of age and in subsets tested at 2 and 3 years. Using an extension of the DF multiple regression methodology for analyzing twin data, no evidence was found for a linear or quadratic effect of level of cognitive ability on estimates of heritability or shared environmentality.

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