Do deaf readers need sound-based skills to read well?
Deaf readers reached similar reading levels by different routes: oral deaf readers relied on English sound knowledge, while deaf native signers relied more on meaning-based memory.
Source
The contribution of phonological knowledge, memory, and language background to reading comprehension in deaf populations
Study at a glance
- Design
- Cross-sectional — Two deaf groups (oral deaf vs deaf native signers) compared on novel phonology tasks that separate spelling from sound knowledge, then regression/partial correlations predicting reading comprehension.
- N
- The participants section is missing from the available text, so the sample size per group is not stated; the same participants took part in both experiments, plus a separate hearing group used only to validate the tasks.
- Population
- Profoundly deaf adults: oral deaf individuals who use spoken English and deaf native signers of American Sign Language
- Outcome
- Accuracy on phoneme judgment and phonemic manipulation tasks; sentence-level reading comprehension (PIAT-R) and its predictors
Structured fields used in claim comparison tables when every cited study has a complete layer.
What they did
Oral deaf adults and deaf adults who grew up with American Sign Language did picture-based tasks where knowing how a word is spelled either helped, did not help, or actively misled a judgment about its sounds. This separated true sound (phonological) knowledge from spelling knowledge. The same people then completed a sentence-reading comprehension test, speechreading, syllable counting, serial recall and free recall tasks, and the researchers tested which measures predicted reading in each group after removing non-verbal IQ and degree of hearing loss.
What they found
Both groups did worse when spelling was uninformative, but the signers were hit much harder, showing they leaned more on visual spelling to answer sound questions. The two groups did not differ in reading comprehension, non-verbal IQ, or memory span. Yet the predictors differed: in oral deaf readers, the 'deep' phonology score and serial recall span correlated with reading, whereas in native signers the primacy part of free recall (remembering the first words of a list, linked to meaning-based coding) and the spelling-based 'shallow' score did. The group-by-free-recall-primacy interaction was the only group difference in predictors.
The limits
What it doesn't show
The available text does not include the participant description, so group sizes and recruitment cannot be checked here, and the groups were small enough that per-group correlations rest on few people. The design is correlational, so it cannot show that semantic memory causes better reading in signers; the shallow phonology score might simply reflect how much people read. Free recall was scored only in each person's preferred language, and missing data were filled with the mean. The findings concern adults with profound deafness and may not apply to deaf children learning to read.
Key terms
- Phonological awareness
- Knowledge of the sound structure of words, such as which words share a first sound or how many syllables a word has.
- Orthographic transparency
- How reliably a word's spelling tells you its pronunciation; 'phone' starting with an f-sound is an example of low transparency.
- Primacy effect
- Better recall of the first items in a list, thought to reflect items being consolidated into longer-term, meaning-based memory.
- Serial recall span
- The longest list someone can repeat back in exact order, which relies heavily on phonological (sound or sign) rehearsal.
- Partial correlation
- A correlation between two measures after statistically removing the influence of other variables, here IQ and hearing loss.
Flashcards
0 of 11 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
What was the key design feature of the new phonology tasks?
Common questions
Why not just use rhyme tasks to test deaf readers' phonology?
Many such tasks can be solved from spelling alone (e.g., words that look alike often rhyme), so a good score might reflect spelling knowledge rather than knowledge of sounds. This study built conditions where spelling misleads to separate the two.
Does this mean signers read worse?
No. The two groups had similar reading comprehension scores; they appeared to get there using different cognitive skills.
Why would a memory task in ASL predict reading English?
The authors suggest primacy in free recall reflects meaning-based processing, and signers reading English as a second language may rely more on semantics to hold sentences together.
More on Reading