Assessment & Research

Spontaneous Expressive Language Profiles in a Clinically Ascertained Sample of Children With Autism Spectrum Disorder.

Thomas et al. (2021) · Autism research : official journal of the International Society for Autism Research 2021
★ The Verdict

Spontaneous expressive language gaps in autism last years, but naturalistic assessment plus structured conversation can spot and chip away at them.

✓ Read this if BCBAs doing language assessments or running verbal programs for school-age clients.
✗ Skip if Practitioners focused only on severe problem behavior with no verbal goals.

01Research in Context

01

What this study did

Thomas et al. (2021) watched kids with autism talk during everyday play. They used the OSEL, a tool that records real-life language, not test answers.

The team looked at grammar, story-telling, and social use of words. They wanted to see how these skills stack up against typical peers.

02

What they found

Kids with autism kept showing weaker spontaneous speech. Problems stayed put in grammar, pragmatics, and story order.

The gaps lasted into middle childhood, even for children who could speak in sentences.

03

How this fits with other research

McGonigle-Chalmers et al. (2013) seems to disagree. They showed that non-verbal children with autism could still understand grammar on a touch screen. The two studies look at different sides: R et al. watched real talking; Maggie tested hidden understanding. Both can be true—kids may know rules they cannot say.

Su et al. (2018) found the same uneven profile in Mandarin-speaking preschoolers. Vocabulary and grammar sat above pragmatic use, backing the idea that this pattern crosses languages.

Shams et al. (2025) offers hope. Eight weeks of structured oral-language play lifted expressive scores for preschoolers. The deficit is real, but it can move with the right teaching.

04

Why it matters

Naturalistic tools like the OSEL give you a clearer picture than clinic tests alone. If a child scores okay on a standardized scale but sounds flat in free play, trust the play sample. Target social use of language and story-telling, not just vocabulary. Start structured conversations early; Shams et al. shows you have room to change the curve.

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02At a glance

Intervention
not applicable
Design
case series
Sample size
87
Population
autism spectrum disorder
Finding
negative

03Original abstract

Children with autism spectrum disorder (ASD) have varying degrees of language impairment across multiple domains, which may include deficits in syntactic, pragmatic, and/or semantic skills. The heterogeneity of language profiles within ASD, coupled with the limited scope of existing standardized language measures, makes a comprehensive assessment of language impairments in ASD challenging. The Observation of Spontaneous Expressive Language (OSEL) is a new measure developed to capture children's spontaneous use of language in a naturalistic setting. The current study used the OSEL to examine the patterns of spontaneous expressive language abilities of 87 clinically ascertained children with ASD from 2 to 12 years. As expected, children with ASD were significantly more impaired in their spontaneous use of language compared to typically developing peers. Syntax and narrative skills continued to increase with age from toddler to elementary school years in cross-sectional comparisons. Pragmatic skills improved form toddler to preschool years but remained stable from preschool to elementary school years. Preliminary data also demonstrated significant improvements in OSEL syntax scores over time for a subset of children followed longitudinally (n = 8). Children with ASD consistently showed more impairments in spontaneous expressive language captured on the OSEL compared to language skills measured by other more structured standardized assessments, despite moderate convergent validity among those measures. Results suggest that impairments in the spontaneous and functional use of expressive language persist into middle childhood for many children with ASD, and a comprehensive assessment approach can lead to more precisely targeted treatment addressing specific language profiles. LAY SUMMARY: This study aimed to examine the variable language profiles in children with ASD. Children with ASD were shown to have impairments in the structure, meaning, and social use of language. These challenges were captured best by a measure that was created to assess the spontaneous use of language in a naturalistic environment. The results of this study emphasize the importance of a comprehensive assessment of language in ASD to inform treatment. Autism Res 2021, 14: 720-732. © 2020 International Society for Autism Research and Wiley Periodicals LLC.

Autism research : official journal of the International Society for Autism Research, 2021 · doi:10.1002/aur.2408