Language growth in verbal autistic children from 5 to 11 years.
Baseline language level at preschool age predicts school-age language progress better than autism diagnosis.
01Research in Context
What this study did
The team followed 100 verbal children from . Half had autism, half were typical peers. All began with low language scores. Each year the kids took the same language test. The study asked one question: does autism label or starting language level predict later growth?
What they found
By age 11 the gaps closed. Kids with low language at 4—autistic or not—grew words faster than peers who had started higher. Starting language score, not autism, told who would catch up. Diagnosis alone gave no useful forecast.
How this fits with other research
Solomon et al. (2018) saw the same fast growth in IQ: one-third of autistic kids jumped 30 points by age 8. Their earlier map of cognitive change set the stage for Amanda’s focus on language.
Lyall et al. (2014) seems to disagree. They found school-age autistic kids still gestured less and lagged in vocabulary. The clash fades when you see Kristen’s sample included minimally verbal children. Amanda studied only verbal kids, so her upbeat curve does not apply to the whole spectrum.
Spanoudis et al. (2011) backs Amanda up. Their 8-month inclusive toddler program pushed a large share of autistic kids into the typical range. Both papers show that, with the right start, large language gains are possible.
Why it matters
Stop using the autism label to set language goals. Look at the child’s baseline vocabulary instead. A verbal young learners with low words can outgrow delays by 11, so plan for acceleration, not lifelong deficit. Re-assess each year and keep goals ambitious.
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02At a glance
03Original abstract
To examine predictors and growth in language for verbal autistic and non-autistic children with/without low language from 4 to 11 years. Receptive and expressive language trajectories were compared in a community sample of 1026 children at ages 5, 7, and 11 years, across four groups: two autistic groups; one with and one without low language; and two non-autistic groups; one with and one without low language. Groups were delineated on baseline assessment at 4 years. Non-autistic and autistic children with low language had lower mean expressive language scores than the non-autistic typical language group (22.26 and 38.53 units lower, respectively, p < 0.001), yet demonstrated faster language growth across 5 to 11 years (p < 0.001 and p = 0.002, respectively). Both groups without low language had similar mean expressive language scores (p = 0.864) and a comparable rate of growth (p = 0.645). Language at 4 years was the only consistent predictor of language at 11 years for autistic children. Results were similar for receptive language in all analyses except there was no significant difference in rate of progress (slope) for the autistic with low language group compared with the typical language group (p = 0.272). Findings suggest early language ability, rather than a diagnosis of autism, is key to determining language growth and outcomes at 11 years in verbal children. Furthermore, children with low language showed developmental acceleration compared with same age peers.
Autism research : official journal of the International Society for Autism Research, 2024 · doi:10.1002/aur.3171