Abstract
It has been proposed that poor non-word repetition is a marker of specific language impairment (SLI), and a precursor and marker of dyslexia. This study investigated whether a non-word repetition deficit underlies both disorders. A group of Dutch preschool SLI children and children at familial risk of dyslexia, as well as school-going groups of SLI and dyslexic children were presented with a non-word repetition task. The results showed that the SLI and the (at-risk of) dyslexia groups performed more poorly than the control children. Furthermore, with the exception of one child, all preschool SLI children scored significantly below the mean of the preschool control group, suggesting that non-word repetition performance is a marker of SLI. Approximately half of the at-risk group were poor performers, which was expected on the basis of the familial risk factor of the at-risk group. The results show that a non-word repetition deficit is attested early in life and underlies both dyslexia and SLI.
Original language | English |
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Pages (from-to) | 935-944 |
Number of pages | 10 |
Journal | Clinical Linguistics and Phonetics |
Volume | 21 |
Issue number | 11-12 |
DOIs | |
Publication status | Published - 1 Nov 2007 |
Funding
The present study was part of the project ‘‘Early language development in Specific Language Impairment and dyslexia: A prospective and comparative study’’, as well as the project ‘‘Identifying the core features of developmental dyslexia: a multidisciplinary approach’’. It was supported by the Netherlands Organization for Scientific Research (NWO, nr. 360-70-030), the Utrecht institute of Linguistics OTS, and the University of Groningen. The authors wish to extend their gratitude to the children, parents, and schools who participated in this study and to our collaborators, Petra van Alphen, Pieter Been, Jan de Jong, Carien Wilsenach, Marjolein van Woudenberg, and Frank Wijnen.
Keywords
- At-risk studies
- Dyslexia
- Non-word repetition
- Phonological processing
- Specific language impairment