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Genome-wide association study of receptive language ability of 12-year-olds
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22 |
Common variation near ROBO2 is associated with expressive vocabulary in infancy
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Socioeconomic status (SES) and children's intelligence (IQ): In a uk-representative sample SES moderates the environmental, not genetic, effect on IQ
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Socioeconomic status (SES) and children's intelligence (IQ) : in a UK-representative sample SES moderates the environmental, not genetic, effect on IQ
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Two by two : a twin study of second-language acquisition
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Abstract:
In this report, we provide initial results of the first application of the classic twin design to second-language acquisition. The analysis was conducted on assessments teachers made using United Kingdom National Curriculum standards and included 604 pairs of 14-year-old twins. The results demonstrate substantial heritability (.67) and low influence of shared environment (.13) on this measure of second-language acquisition. The heritability of second-language acquisition at 14 years is comparable to the heritability of the two first-language acquisition measures obtained at 12 and 14 years, respectively, and is higher than heritability estimates previously published for first-language acquisition in early childhood. Multivariate behavior genetic analyses suggest very high, but not complete, overlap of genetic influences on first- and second-language acquisition, and less overlap between shared environmental influences on the two domains.
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URL: http://wrap.warwick.ac.uk/65887/ https://doi.org/10.1177/0956797610368060
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