Tiffany Woynaroski
Last active: 3/18/2020

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

Bottema-Beutel K, Woynaroski T, Louick R, Stringer Keefe E, Watson LR, Yoder PJ
Autism. 2019 23 (2): 424-435

PMID: 29307218 · PMCID: PMC6296890 · DOI:10.1177/1362361317745856

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 (28-53 months at Time 1) comprised the autism spectrum disorder group and 46 children (8-24 months at Time 1) 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.

MeSH Terms (11)

Autism Spectrum Disorder Autistic Disorder Case-Control Studies Child, Preschool Female Humans Infant Language Development Longitudinal Studies Male Vocabulary

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