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Journal article

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 15t...

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Publication status:
Published

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Authors


Spinath, FM More by this author
Bishop, DV More by this author
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Journal:
Journal of child psychology and psychiatry, and allied disciplines
Volume:
45
Issue:
2
Pages:
315-325
Publication date:
2004-02-05
DOI:
EISSN:
1469-7610
ISSN:
0021-9630
URN:
uuid:d35d42f7-f02f-4dbc-a280-47c11fbbd890
Source identifiers:
30472
Local pid:
pubs:30472

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