Do children with Williams syndrome really have good vocabulary knowledge? Methods for comparing cognitive and liguistic abilities in developmental disorders

J Brock, C Jarrold, EK Farran, GJ Laws, DM Riby

Research output: Contribution to journalArticle (Academic Journal)peer-review

41 Citations (Scopus)

Abstract

The comparison of cognitive and linguistic skills in individuals with developmental disorders is fraught with methodological and psychometric difficulties. In this paper, we illustrate some of these issues by comparing the receptive vocabulary knowledge and non‐verbal reasoning abilities of 41 children with Williams syndrome, a genetic disorder in which language abilities are often claimed to be relatively strong. Data from this group were compared with data from typically developing children, children with Down syndrome, and children with non‐specific learning difficulties using a number of approaches including comparison of age‐equivalent scores, matching, analysis of covariance, and regression‐based standardization. Across these analyses children with Williams syndrome consistently demonstrated relatively good receptive vocabulary knowledge, although this effect appeared strongest in the oldest children. Read More: http://informahealthcare.com/doi/abs/10.1080/02699200701541433
Translated title of the contributionDo children with Williams syndrome really have good vocabulary knowledge? Methods for comparing cognitive and liguistic abilities in developmental disorders
Original languageEnglish
Pages (from-to)673 - 688
Number of pages16
JournalClinical Linguistics & Phonetics
Volume21
DOIs
Publication statusPublished - Sep 2007

Structured keywords

  • Developmental

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