Longitudinal Relationships Between Lexical and Grammatical Development in Typical and Late-Talking Children
| Autor: | Julia L. Evans, Susan Ellis Weismer, Maura Jones Moyle, Mary J. Lindstrom |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Male
Linguistics and Language Vocabulary media_common.quotation_subject Grammatical development Severity of Illness Index Article Language and Linguistics Speech and Hearing Typically developing Humans Language Development Disorders media_common Language Tests Grammar Age Factors Follow up studies Linguistics Language acquisition Syntax Vocabulary development Child Preschool Female Psychology Follow-Up Studies |
| Zdroj: | Journal of Speech, Language, and Hearing Research. 50:508-528 |
| ISSN: | 1558-9102 1092-4388 |
| DOI: | 10.1044/1092-4388(2007/035) |
| Popis: | Purpose This study examined the longitudinal relationships between lexical and grammatical development in typically developing (TD) and late-talking children for the purposes of testing the single-mechanism account of language acquisition and comparing the developmental trajectories of lexical and grammatical development in late-talking and TD children. Method Participants included 30 children identified as late talkers (LTs) at 2;0 (years;months), and 30 TD children matched on age, nonverbal cognition, socioeconomic status, and gender. Data were collected at 5 points between 2;0 and 5;6. Results Cross-lagged correlational analyses indicated that TD children showed evidence of bidirectional bootstrapping between lexical and grammatical development between 2;0 and 3;6. Compared with the TD group, LTs exhibited less evidence of syntactic bootstrapping. Linear mixed-effects modeling of language sample data suggested that the relationship between lexical and grammatical growth was similar for the 2 groups. Conclusion Lexical and grammatical development were strongly related in both groups, consistent with the single-mechanism account of language acquisition. The results were mixed in terms of finding longitudinal differences in lexical–grammatical relationships between the TD and late-talking children; however, several analyses suggested that for late-talking children, syntactic growth may be less facilitative of lexical development. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|