Predicting literacy in children with a high-functioning autism spectrum disorder.
In HFASD learners, decoding and comprehension ride on IQ, phonology, and syntax—vocabulary adds nothing, so teach language structure, not just word meanings.
01Research in Context
What this study did
The team ran a regression study on school-age kids with high-functioning autism. They asked which thinking and language skills predict decoding and reading comprehension.
Kids took tests of IQ, phonology, syntax, and semantics. The same tests were given to a non-ASD group for comparison.
What they found
For both groups, IQ, phonological skill, and syntax predicted decoding and comprehension. A clear difference showed up for semantics.
In typical kids, stronger vocabulary boosted literacy scores. In HFASD kids, vocabulary added no extra power to predict reading success.
How this fits with other research
McIntyre et al. (2017) extends this work. They showed that oral language weakness, not decoding issues, drives poor comprehension in HFASD. Together the papers tell us to look past word-reading accuracy.
Plaisted et al. (2006) and Plant et al. (2007) set the stage. Their early case work found wide scatter and a decoding-comprehension gap in ASD. The new data now name the exact skills that matter.
Fleury et al. (2018) tracks the same kids over time. Comprehension grows at the same rate as in peers but never catches up. This warns us that early weak oral language has lasting effects.
Why it matters
Stop assuming a big vocabulary will lift reading in HFASD learners. Focus your teaching time on phonological awareness, sentence structure, and broad thinking skills. Check oral language early and re-check it often, because the gap stays open even when decoding looks fine.
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02At a glance
03Original abstract
The most commonly reported reading profile for children with a high-functioning autism spectrum disorder (HFASD) is one of intact decoding combined with reduced reading comprehension. Whether or not the variables that predict decoding and reading comprehension for children with a HFASD are exactly the same as those identified for a non-ASD population is unknown. Therefore, the ability of cognition, phonological processing, oral language, and vision to predict decoding and reading comprehension was investigated. Regression analysis revealed that cognition, phonological processing, and syntax predicted decoding and reading comprehension for the HFASD and non-ASD groups. One notable difference was that semantics predicted literacy for the non-ASD children but not their HFASD peers.
Research in developmental disabilities, 2013 · doi:10.1016/j.ridd.2013.04.007