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50 Years of ERIC
50 Years of ERIC
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Peer reviewed Peer reviewed
ERIC Number: EJ675278
Record Type: CIJE
Publication Date: 2003
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0009-3920
Genetic Evidence for Bidirectional Effects of Early Lexical and Grammatical Development.
Dionne, Ginette; Dale, Philip S.; Boivin, Michel; Plomin, Robert
Child Development, v74 n2 p394-412 Mar-Apr 2003
Two cohorts of same-sex twin pairs were assessed on grammar and vocabulary. Findings indicated that vocabulary and grammar correlated strongly at 2 and 3 years in both cohorts, with a consistently high genetic correlation between vocabulary and grammar at both ages. Findings suggest that the same genetic influences operate for vocabulary and grammar, a finding incompatible with traditional autonomy hypothesis. (Author/KB)
Descriptors: Correlation, Genetics, Grammar, Language Acquisition, Longitudinal Studies, Models, Preschool Children, Psycholinguistics, Theories, Toddlers, Twins, Vocabulary Development
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Developmental Behavioral Genetics; Syntactic Bootstrapping