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Verbal and nonverbal predictors of early language problems: an analysis of twins in early childhood back to infancy

Oliver, Bonamy R; Dale, Philip S and Plomin, Robert. 2004. Verbal and nonverbal predictors of early language problems: an analysis of twins in early childhood back to infancy. Journal of child language, 31(3), pp. 609-631. ISSN 0305-0009 [Article]

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Abstract or Description

We investigated infant precursors of low language scores in early childhood. The sample included 373 probands in 130 monozygotic (MZ) and 109 same-sex dizygotic (DZ) twin pairs in which at least one member of the pair scored in the lowest 15th percentile of a control sample on a general language factor derived from tester-administered tests at 4 ; 6. From data at 2 ; 0, 3 ; 0 and 4 ; 0 the antecedents of poor language performance at 4 ; 6 for these probands were compared to 290 control children. As early as 2 ; 0, language measures substantially predicted low-language status at 4 ; 6, with predictions increasing at 3 ; 0 and 4 ; 0. Nonverbal cognitive development at 3 ; 0 and 4 ; 0 was nearly as predictive of low language at 4 ; 6 as were the language measures. Behaviour problems were also significant predictors of low language status although the associations were only about half as strong. Bivariate genetic analyses indicated that these predictions are mediated by both genetic and shared environmental links.

Item Type:

Article

Identification Number (DOI):

https://doi.org/10.1017/S0305000904006221

Related URLs:

Departments, Centres and Research Units:

Psychology

Dates:

DateEvent
4 November 2004Published

Item ID:

21267

Date Deposited:

22 Sep 2017 16:01

Last Modified:

03 Oct 2017 10:40

Peer Reviewed:

Yes, this version has been peer-reviewed.

URI:

http://research.gold.ac.uk/id/eprint/21267

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