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Exploring the interactive and linguistic dimensions of parent input and their role in the development of children's simple sentences.
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Exploring Sentence Diversity at the Boundary of Typical and Impaired Language Abilities
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In: J Speech Lang Hear Res (2020)
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Grammatical input differences remain six-months following toy talk instruction
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Uniformity of pronoun case errors in typical development: the association between children's first person and third person case errors in a longitudinal study
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Developmental expectations for child-like sentences
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Abstract:
Purpose: The purpose of this project was to establish developmental sentence diversity expectations for children at 30 months of age. Two research questions were posed: (1) Is there a difference in the diversity of sentence subject types (i.e., first person singular, third person singular) at 30 months of age? (2) Is there a relationship between diversity of the selected sentence subject types and general measures of grammatical development? Methods: Forty typically-developing toddlers at 30 months of age were selected from an existing database (Rispoli & Hadley, 2008) to develop sentence diversity expectations. Parent-child 30-min language samples were used to code sentence subjects for person (i.e., first person, second person, third person) and number (i.e., singular, plural). Sentence diversity was examined by converting coded sentences to unique subject-verb combinations (USVs). Mean length of utterance in morphemes (MLU; Brown, 1973) and Index of Productive Syntax (IPSyn; Scarborough, 1990) scores were calculated using 100 complete and intelligible utterances to determine the relationship between sentence diversity and general language measures. Results: There was not a significant difference between first person singular and third person singular USVs with the full sample, so a follow-up analysis was conducted by dividing the sample in half using the median MLU in morphemes at 30 months. This analysis revealed a significant difference between first person singular and third person singular USVs for the low MLU group, but not for the high MLU group. Low to moderate significant relationships were observed between first person USVs and both MLU and total IPSyn score at 30 months. A moderate to high significant correlation was observed between third person USVs and MLU, and a moderate significant correlation was observed with third person USVs and total IPSyn score. Clinical Application: Five at-risk 30-month-old toddlers were selected based on their 36 month scores on the Test of Early Grammatical Impairment (TEGI; Rice & Wexler, 2001) to demonstrate the clinical usefulness of sentence diversity expectations. Criterion-referenced and norm-referenced cut-offs were presented to identify retrospective weaknesses in sentence production at 30 months of age. Discussion: Clinical usefulness of sentence diversity expectations and future research directions regarding sentence diversity are discussed.
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Keyword:
Child language; early intervention; grammatical development; sentence diversity; speech-language pathology
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URL: http://hdl.handle.net/2142/45319
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Child-adult differences in implicit and explicit second language learning
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The Sentence Diversity Checklist: Characterizing Early Syntactic Development Using Parent Report
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Parent-Examiner Differences in their use of Toy Talk and its Influence on Input Informativeness
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Toy talk: A simple strategy to promote richer grammatical input
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Understanding Contributors to Input Informativeness for Tense Marking: Overlap among English Typology, Parent-Toddler Interaction Style, and Register
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Use of family history information in school-based prevention practice
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Social biases toward children with speech and language impairments: A correlative causal model of language limitations
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