Abstract
In light of evidence that receptive language may be a relative weakness for individuals with autism spectrum disorder (ASD), this study characterized receptive vocabulary profiles in boys with ASD using cross-sectional developmental trajectories relative to age, nonverbal cognition, and expressive vocabulary. Participants were 49 boys with ASD (4-11 years) and 80 typically developing boys (2-11 years). Receptive vocabulary, assessed with the Peabody Picture Vocabulary Test, was a weakness for boys with ASD relative to age and nonverbal cognition. Relative to expressive vocabulary, assessed with the Expressive Vocabulary Test, receptive vocabulary increased at a lower rate for boys with ASD. Vocabulary trajectories in ASD are distinguished from typical development; however, nonverbal cognition largely accounts for the patterns observed.
Original language | English (US) |
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Pages (from-to) | 2696-2709 |
Number of pages | 14 |
Journal | Journal of Autism and Developmental Disorders |
Volume | 43 |
Issue number | 11 |
DOIs | |
State | Published - Nov 2013 |
Keywords
- Autism
- Comprehension
- Language development
- Production
- Trajectory
- Vocabulary
ASJC Scopus subject areas
- Developmental and Educational Psychology