Does the Simple View of Reading fit teens with intellectual disability?
For teenagers with intellectual disability, understanding what they read depended not just on decoding words and understanding speech, but directly on vocabulary and working memory too.
Source
Investigating Reading Comprehension in Adolescents with Intellectual Disabilities: Evaluating the Simple View of Reading
Study at a glance
- Design
- Cross-sectional — Single-time-point assessment of about 4 hours of reading, language and cognitive tests per student, analysed with competing structural equation models of the Simple View of Reading.
- N
- N=136 · 136 adolescents aged 12-19 with non-specific intellectual disability tested in Swedish schools (59 girls); the preregistered target was 150.
- Population
- Swedish-speaking adolescents in special education classes with non-specific intellectual disability; about half also had diagnoses such as ADHD or autism.
- Outcome
- Reading comprehension (multiple-choice questions on texts), modelled from decoding, listening comprehension and cognitive/language predictors such as vocabulary and working memory.
Structured fields used in claim comparison tables when every cited study has a complete layer.
What they did
The team tested 136 Swedish adolescents with intellectual disability on reading comprehension, listening comprehension, word and nonword decoding, and a wide range of other skills including vocabulary, grammar, several memory measures, phonological awareness, rapid naming and home literacy. Using structural equation modelling, they compared a model obeying the Simple View of Reading (reading comprehension equals decoding times listening comprehension, with every other skill acting only through those two) against an unconstrained model allowing direct effects. They also asked whether the predictors resembled those of younger typically developing children (a delay profile) or were different.
What they found
The model constrained to the Simple View fitted the data very poorly, while the unconstrained model fitted well and was statistically preferred. In the best model, decoding strongly predicted reading comprehension, vocabulary and verbal working memory had direct effects on reading comprehension, and listening comprehension itself no longer contributed once these were included. The predictors (vocabulary and working memory) are the same ones known from typically developing children, so the authors see partial support for a delay rather than a different profile, although the delay and difference models turned out identical and could not be formally distinguished.
The limits
What it doesn't show
The data come from one time point, so the paths in the model describe associations, not causes, and cannot show how reading develops. The sample fell short of the planned 150 and about half the students had additional diagnoses such as ADHD or autism, which the authors note makes it harder to attribute effects to intellectual disability itself. The working-memory measure that mattered (listening span) is itself heavily verbal, so it may partly re-measure language skill, and the models were refined using modification indices, which risks fitting sample-specific quirks.
Key terms
- Simple View of Reading
- The theory that reading comprehension is the product of decoding (turning print into words) and language comprehension, often written R = D x C.
- Decoding
- The ability to read words and nonwords aloud accurately and fluently from print.
- Intellectual disability
- A condition involving broad limitations in intellectual and adaptive functioning, typically with IQ below 70.
- Executive-loaded working memory
- Holding information in mind while also processing other information, as in a listening span task.
- Structural equation modelling
- A statistical method that tests whether a proposed network of paths among variables fits the observed pattern of correlations.
- Delay versus difference hypothesis
- Whether a group's skills develop like typical development but more slowly (delay) or follow a qualitatively different pattern (difference).
Flashcards
0 of 10 answers reviewed
Research intelligence for this paper
See its role on concept claims, tensions it is part of, placement history, and related discoveries.
Quiz yourself
According to the Simple View of Reading, reading comprehension is the product of which two skills?
Common questions
Does this mean the Simple View of Reading is wrong?
Not in general. It means that in this group, decoding and listening comprehension alone could not account for reading comprehension; vocabulary and working memory also contributed directly, which echoes some findings in typical readers too.
Why did listening comprehension stop mattering?
Once vocabulary and working memory were allowed to predict reading directly, the extra contribution of listening comprehension fell to nearly zero, possibly because these students have not yet mastered decoding, the stage at which listening comprehension usually becomes more important.
What are the practical implications?
The authors suggest reading support for adolescents with intellectual disability should not focus only on decoding and oral comprehension; vocabulary knowledge may be an important additional target, though this study cannot show that training it would help.
More on Reading