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Longitudinal associations across vocabulary modalities in children with autism and typical development.

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Title: Longitudinal associations across vocabulary modalities in children with autism and typical development.
Authors: Bottema-Beutel, Kristen1 Kristen.bottema-beutei@bc.edu, Woynaroski, Tiffany2, Louick, Rebecca1, Keefe, Elizabeth Stringer1, Watson, Linda R.3, Yoder, Paul J.4
Source: Autism: The International Journal of Research & Practice. Feb2019, Vol. 23 Issue 2, p424-435. 12p.
Subject Terms: *Autism, *Caregivers, *Child behavior, *Comparative studies, *Infant psychology, *Longitudinal method, *Vocabulary, Linguistics, Psychology of children with disabilities
Abstract: We examined differences between children with autism spectrum disorder and typically developing children over an 8-month period in: (a) longitudinal associations between expressive and receptive vocabulary and (b) the extent to which caregiver utterances provided within an "optimal" engagement state mediated the pathway from early expressive to later receptive vocabulary. In total, 59 children (28-53months at Time I) comprised the autism spectrum disorder group and 46 children (8-24months at Time I) comprised the typically developing group. Groups were matched on initial vocabulary sizes. Results showed that the association between early expressive and later receptive vocabulary was moderated by group. A moderated mediation effect was also found, indicating linguistic input provided within an optimal engagement state only mediated associations for the autism spectrum disorder group. [ABSTRACT FROM AUTHOR]
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Database: Education Research Complete
Description
Abstract:We examined differences between children with autism spectrum disorder and typically developing children over an 8-month period in: (a) longitudinal associations between expressive and receptive vocabulary and (b) the extent to which caregiver utterances provided within an "optimal" engagement state mediated the pathway from early expressive to later receptive vocabulary. In total, 59 children (28-53months at Time I) comprised the autism spectrum disorder group and 46 children (8-24months at Time I) comprised the typically developing group. Groups were matched on initial vocabulary sizes. Results showed that the association between early expressive and later receptive vocabulary was moderated by group. A moderated mediation effect was also found, indicating linguistic input provided within an optimal engagement state only mediated associations for the autism spectrum disorder group. [ABSTRACT FROM AUTHOR]
ISSN:13623613
DOI:10.1177/1362361317745856