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Consistency of a Nonword Repetition Task to Discriminate Children with and without Developmental Language Disorder in Catalan-Spanish and European Portuguese Speaking Children
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Statistical word learning in Catalan-Spanish and English-speaking children with and without developmental language disorder
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Consistency of a nonword repetition task to discriminate children with and without developmental language disorder in catalan-spanish and european portuguese speaking children
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Abstract:
Nonword repetition has been proposed as a diagnostic marker of developmental language disorder (DLD); however, the inconsistency in the ability of nonword repetition tasks (NRT) to identify children with DLD raises significant questions regarding its feasibility as a clinical tool. Research suggests that some of the inconsistency across NRT may be due to differences in the nature of the nonword stimuli. In this study, we compared children's performance on NRT between two cohorts: the children in the Catalan-Spanish cohort (CS) were bilingual, and the children in the European Portuguese cohort (EP) were monolingual. NRT performance was assessed in both Spanish and Catalan for the bilingual children from Catalonia-Spain and in Portuguese for the monolingual children from Portugal. Results show that although the absolute performance differed across the two cohorts, with NRT performance being lower for the CS, in both Catalan and Spanish, as compared to the EP cohort in both, the cut-points for the likelihood ratios (LH) were similar across the three languages and mirror those previously reported in previous studies. However, the absolute LH ratio values for this study were higher than those reported in prior research due in part to differences in wordlikeness and frequency of the stimuli in the current study. Taken together, the findings from this study show that an NRT consisting of 3-, 4-, and 5-syllable nonwords, which varies in wordlikeness ratings, when presented in a random order accurately identifies and correctly differentiates children with DLD from TD controls the child is bilingual or monolingual.
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Keyword:
Catalan; deteriorament del llenguatge específic (SLI); deterioro específico del lenguaje (SLI); developmental language disorder (DLD); diagnostic markers of DLD/SLI; European Portuguese; índice de probabilidad; likelihood ratio; marcadores de diagnóstico de DLD / SLI; marcadors diagnòstics de DLD / SLI; nonword repetition; portugués europeo; portuguès europeu; Psicologia; Psicología; Psychology; ràtio de probabilitat; specific language impairment (SLI); trastorn del llenguatge del desenvolupament (DLD); trastorno del desarrollo del lenguaje (DLD)
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URL: http://hdl.handle.net/10609/130893
https://doi.org/10.3390/children8020085
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Statistical Word-Learning in Catalan-Spanish Children with Specific Language Impairment
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In: TDX (Tesis Doctorals en Xarxa) (2019)
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Statistical Word-Learning in Catalan-Spanish Children with Specific Language Impairment
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