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The structure of language abilities at 4 years: A twin study

Colledge, E; Bishop, DVM; Koeppen-Schomerus, G; Price, TS; Happe, FGE; Eley, TC; Dale, PS; (2002) The structure of language abilities at 4 years: A twin study. DEV PSYCHOL , 38 (5) 749 - 757. 10.1037//0012-1649.38.5.749.

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Abstract

Normal language development was studied in 3 10 pairs of 4-year-old twins born in the United Kingdom in 1994. Twins were assessed individually in their homes on a diverse battery of language and nonverbal measures. Rotated factor analyses indicated the presence of a general Language factor (L) as well as a general Nonverbal (NV) factor. Moderate genetic influence was found for both L and NV abilities. Bivariate genetic analysis estimated a genetic correlation of .63 between L and NV abilities, implying that over half of the genetic influence on L overlaps with genetic influence on NV. These results suggest that at age 4, genetic influences on individual differences in language overlap substantially with genetic influences on individual differences in other cognitive abilities, although perhaps less so than later in development.

Type: Article
Title: The structure of language abilities at 4 years: A twin study
DOI: 10.1037//0012-1649.38.5.749
Keywords: BEHAVIORAL GENETIC PERSPECTIVE, COGNITIVE-ABILITIES, INTELLIGENCE, CHILDREN, MODULARITY, PRESCHOOL, SCALE
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Clinical, Edu and Hlth Psychology
URI: http://discovery.ucl.ac.uk/id/eprint/290053
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