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  • Title: Sentence imitation as a marker of SLI in Czech: disproportionate impairment of verbs and clitics.
    Author: Smolík F, Vávru P.
    Journal: J Speech Lang Hear Res; 2014 Jun 01; 57(3):837-49. PubMed ID: 24763390.
    Abstract:
    PURPOSE: The authors examined sentence imitation as a potential clinical marker of specific language impairment (SLI) in Czech and its use to identify grammatical markers of SLI. METHOD: Children with SLI and the age- and language-matched control groups (total N = 57) were presented with a sentence imitation task, a receptive vocabulary task, and digit span and nonword repetition tasks. Sentence imitations were scored for accuracy and error types. A separate count of inaccuracies for individual part-of-speech categories was performed. RESULTS: Children with SLI had substantially more inaccurate imitations than the control groups. The differences in the memory measures could not account for the differences between children with SLI and the control groups in imitation accuracy, even though they accounted for the differences between the language-matched and age-matched control groups. The proportion of grammatical errors was larger in children with SLI than in the control groups. The categories that were most affected in imitations of children with SLI were verbs and clitics. CONCLUSION: Sentence imitation is a sensitive marker of SLI. Verbs and clitics are the most vulnerable categories in Czech SLI. The pattern of errors suggests that impaired syntactic representations are the most likely source of difficulties in children with SLI.
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