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May I Quote You on That?

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Academic Paper

Title: Discriminating Down Syndrome and Fragile X Syndrome based on language ability
Author: Lizbeth H. Finestack
Institution: University of Minnesota
Author: Audra M. Sterling
Institution: University of Wisconsin Madison
Author: Leonard Abbeduto
Institution: University of California
Linguistic Field: Language Acquisition
Abstract: This study compared the receptive and expressive language profiles of verbally expressive children and adolescents with Down Syndrome (DS) and those with Fragile X syndrome (FXS) and examined the extent to which these profiles reliably differentiate the diagnostic groups. A total of twenty-four verbal participants with DS (mean age: 12 years), twenty-two verbal participants with FXS (mean age: 12 years), and twenty-seven participants with typical development (TD; mean age = 4 years) completed standardized measures of receptive and expressive vocabulary and grammar, as well as a conversational language sample. Study results indicate that there are distinct DS and FXS language profiles, which are characterized by differences in grammatical ability. The diagnostic groups were not differentiated based on vocabulary performance. This study supports the existence of unique language profiles associated with DS and FXS.


This article appears IN Journal of Child Language Vol. 40, Issue 1, which you can READ on Cambridge's site or on LINGUIST .

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