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Genetic and environmental influence on language impairment in 4-year-old same-sex and opposite-sex twins

Abstract:

Background: We investigated the aetiology of language impairment in 579 four year-old twins with low language performance and their co-twins, members of 160 MZ twin pairs, 131 same-sex DZ pairs and 102 opposite-sex DZ pairs. Methods: Language impairment in 4-year-olds was defined by scores below the 15th percentile on a general factor derived from an extensive language test battery. Language impairment of different degrees of severity was investigated by using multiple cut-offs below the 15th...

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Publication status:
Published
Peer review status:
Peer reviewed

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Institution:
Institute of Psychiatry, UK
Department:
Social Genetic and Developmental Psychiatry Centre
More by this author
Institution:
Institute of Psychiatry, UK
Department:
Social Genetic and Developmental Psychiatry Centre
More by this author
Institution:
Institute of Psychiatry, UK
Department:
Social Genetic and Developmental Psychiatry Centre
More by this author
Institution:
University of Oxford
Department:
Medical Sciences Division - Experimental Psychology
More by this author
Institution:
University of Missouri-Columbia, USA
Department:
Communication Sciences & Disorders
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Publisher:
Blackwell Publishers Publisher's website
Journal:
Journal of Child Psychology and Psychiatry Journal website
Volume:
45
Issue:
2
Pages:
315-325
Publication date:
2004-02-05
DOI:
EISSN:
1469-7610
ISSN:
0021-9630
URN:
uuid:ed1e5c28-f7de-4c48-9868-d73a2b60590d
Local pid:
ora:5069

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