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Lexical composition in children with autism spectrum disorder (ASD)*

Published online by Cambridge University Press:  05 December 2012

LESLIE RESCORLA
Affiliation:
Psychology, Bryn Mawr College, Pennsylvania, USA
PAIGE SAFYER
Affiliation:
Psychology, Bryn Mawr College, Pennsylvania, USA

Abstract

For sixty-seven children with ASD (age 1;6 to 5;11), mean Total Vocabulary score on the Language Development Survey (LDS) was 65·3 words; twenty-two children had no reported words; and twenty-one children had 1–49 words. When matched for vocabulary size, children with ASD and children in the LDS normative sample did not differ in semantic category or word-class scores. Q correlations were large when percentage use scores for the ASD sample were compared with those for samples of typically developing children as well as children with vocabularies <50 words. The 57 words with the highest percentage use scores for the ASD children were primarily nouns, represented a variety of semantic categories, and overlapped substantially with the words having highest percentage use scores in samples of typically developing children as well as children with lexicons of <50 words. Results indicated that the children with ASD were acquiring essentially the same words as typically developing children, suggesting delayed but not deviant lexical composition.

Type
Articles
Copyright
Copyright © Cambridge University Press 2012

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Footnotes

[*]

Address for correspondence: Leslie Rescorla, Bryn Mawr College – Psychology, 101 N. Merion Ave Bryn Mawr Pennsylvania 19010, United States. e-mail: lrescorl@brynmawr.edu

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