Adults with dyslexia execute both retrieval and procedural arithmetic strategies more slowly than controls¶
Claim · All claims
Evidence · 1 study · associationalr2·q3·i2medium
Currency · newest study 2010 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
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q3 i2 Reaction times on correctly solved trials showed a Group × Strategy interaction, with dyslexia participants slower in executing both retrieval and procedural strategies. → Bert De Smedt 2010
Evidence¶
Bert De Smedt 2010¶
Bert De Smedt, Bart Boets. (2010). Phonological processing and arithmetic fact retrieval: Evidence from developmental dyslexia. Neuropsychologia, 48, 3973–3981. https://doi.org/10.1016/j.neuropsychologia.2010.10.018
q3 · i2 · associational · r2
Strategy-efficiency ANOVA (2 operations × 2 strategies × 2 groups) on reaction times in the dyslexia-control study. The article concludes participants with dyslexia were slower in executing both retrieval and procedural strategies; when digit identification speed was controlled, only the main effect of group remained (F(1, 38) = 4.56, p = .04, ηp² = .11).
"Group interacted with strategy ( F(1, 39) = 9.16, p < .01, /DC1p2 = .19) and there was a trend towards a Group × Strategy× Operation interaction ( F(1, 39) = 3.69, p = .06, /DC1p2 = .09)."
Discussion¶
Related Claims¶
- Adults with developmental dyslexia are slower than controls at speeded digit identification
- Adults with developmental dyslexia use arithmetic fact retrieval less frequently than matched controls during single-digit multiplication and subtraction
- Adults use a mix of retrieval and procedural strategies in single-digit arithmetic, with retrieval more frequent in multiplication and procedures more frequent in subtraction
- Adults with dyslexia are slower than controls on single-digit arithmetic, with a larger multiplication-minus-subtraction reaction-time difference, even after controlling digit identification speed — related
- Adults with DD rely on time-consuming back-up strategies like finger usage for single-digit arithmetic, with prolonged response latencies that appear number-specific — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
dyslexia-slower-strategy-execution |
title |
Adults with dyslexia execute both retrieval and procedural arithmetic strategies more slowly than controls |
description |
Adults with dyslexia execute both retrieval and procedural arithmetic strategies more slowly than controls |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2010 |
generated |
by process:wiki-ingest on 2026-10-16 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — bert-de-smedt-2010 |
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