Vocabulary skills are well developed in university students with dyslexia: Evidence from multiple case studies.
University students with dyslexia can outscore peers on deep word knowledge even while they stumble on sounds.
01Research in Context
What this study did
Cavalli et al. (2016) looked at university students with dyslexia.
They gave each student vocabulary tests that measured two things.
One test asked how many words they knew.
Another test asked how well they understood deep word meanings.
The team compared the scores to students without dyslexia.
What they found
The dyslexic group knew just as many words as the control group.
On the deep-meaning test they actually scored higher.
Yet they still struggled with reading sounds and decoding words.
So strong vocabulary can live beside weak phonics in the same person.
How this fits with other research
Park et al. (2013) saw that older dyslexic readers lean on rapid naming, not phonics.
Eddy’s adults seem to prove that point: fast word retrieval can keep vocabulary rich even when phonics lags.
Steinbrink et al. (2014) found German children with dyslexia failed vowel tasks.
Eddy’s university sample still had phonological trouble, yet their word knowledge looked fine.
The gap shows that basic sound deficits can persist while higher-level language keeps growing.
Jiménez-Fernández et al. (2015) showed Spanish children with dyslexia miss syllable stress.
Eddy’s adults suggest that by university age, stress problems may ease or matter less for vocabulary depth.
Why it matters
Do not assume poor decoding means poor language.
When you test an adult or teen with dyslexia, check both sound skills and word meaning.
If vocabulary is strong, use it.
Let the learner build reading through rich word discussions while you target phonics separately.
This keeps lessons respectful and efficient.
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02At a glance
03Original abstract
Most studies in adults with developmental dyslexia have focused on identifying the deficits responsible for their persistent reading difficulties, but little is known on how these readers manage the intensive exposure to written language required to obtain a university degree. The main objective of this study was to identify certain skills, and specifically vocabulary skills, that French university students with dyslexia have developed and that may contribute to their literacy skills. We tested 20 university students with dyslexia and 20 normal readers (matched on chronological age, gender, nonverbal IQ, and level of education) in reading, phonological, vocabulary breadth (number of known words), and vocabulary depth (accuracy and precision) tasks. In comparing vocabulary measures, we used both Rasch model and single case study methodologies. Results on reading and phonological tasks confirmed the persistence of deficits in written word recognition and phonological skills. However, using the Rasch model we found that the two groups performed at the same level in the vocabulary breadth task, whereas dyslexics systematically outperformed their chronological age controls in the vocabulary depth task. These results are supplemented by multiple case studies. The vocabulary skills of French university students with dyslexia are well developed. Possible interpretations of these results are discussed.
Research in developmental disabilities, 2016 · doi:10.1016/j.ridd.2016.01.006