Article
Genetic influences in different aspects of language development: the etiology of language skills in 4.5-year-old twins.
Child development - 1 Jan 2000
Kovas Yulia, Hayiou-Thomas Marianna E, Oliver Bonamy, Dale Philip S, Bishop Dorothy V M, Plomin Robert
Abstract excerpt
The genetic and environmental etiologies of diverse aspects of language ability and disability, including articulation, phonology, grammar, vocabulary, and verbal memory, were investigated in a U.K. sample of 787 pairs of 4.5-year-old same-sex and opposite-sex twins. Moderate genetic influence was found for all aspects of language in the normal range. A similar pattern was found at the low end of the distribution...
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