Phonological awareness mediates the effect of the DCDC2-READ1 RU2-Short allele on word reading accuracy, word reading fluency, and reading comprehension¶
Claim · All claims
Evidence · 1 study · associationalr2·q3
Currency · newest study 2024 · checked against its sources 2026-10-26 (automated, 1 of 1 entry) · 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.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q3 i? RU2-Short had a significant indirect effect on word reading accuracy, word reading fluency, and reading comprehension through phonological awareness, with bootstrapped 95% CIs not crossing zero. → Li 2024
Evidence¶
Li 2024¶
Li, M., DeMille, M. M. C., Lovett, M. W., Bosson-Heenan, J., Frijters, J. C., Gruen, J. R. & the GRaD Study Consortium. (2024). Phonological awareness mediates the relationship between DCDC2 and reading performance with home environment. npj Science of Learning 9, 36. https://doi.org/10.1038/s41539-024-00247-5
q3 · i? · associational · r2
Regression mediation analysis in the GRaD sample of 1419 children using PROCESS OLS regression with 5000 bootstrap samples; PA and RU2-Short accounted for 69% of variance in word reading accuracy, and the article reports "a significant mediation effect" for all three outcomes (fluency b = −1.87; comprehension b = −0.40).
"RU2-Short had a significant indirect effect (b = −1.74) on word reading accuracy through phonological awareness, with a bootstrapped 95% CI that did not cross zero around the indirect effect (−2.78, −0.68), indicating that phonological awareness had a significant mediation effect."
Discussion¶
Learner Variables¶
- Decoding — predictor: learners who differ on it differ in outcomes
- Phonological Awareness — predictor: learners who differ on it differ in outcomes
Related Claims¶
- Parental education and SES moderate the relationship between RU2-Short and reading outcomes — related
- The indirect effect of RU2-Short on reading outcomes through phonological awareness is conditional on home environment: significant at low and medium parental education and low SES, but not at high parental education or high SES — related
- RU2-Short correlates negatively with phonological awareness and reading comprehension, and positively with SES, in the overall sample — related
- Phonological awareness and rapid bimodal temporal processing partially mediate the Reading-PGS-to-reading association — related
- READ1 RU2Short presence significantly predicts poor comprehension despite adequate word reading after covariate control — related
- Semantic abilities indirectly predict word decoding efficiency in children with dyslexia via phonological awareness and rapid naming — related
- The association between family SES and children's reading is partially mediated, statistically, in parallel by phonological awareness and vocabulary knowledge — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
phonological-awareness-mediate-read1-reading-outcomes |
title |
Phonological awareness mediates the effect of the DCDC2-READ1 RU2-Short allele on word reading accuracy, word reading fluency, and reading comprehension |
description |
Phonological awareness mediates the effect of the DCDC2-READ1 RU2-Short allele on word reading accuracy, word reading fluency, and reading comprehension |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2024 |
source_checked |
2026-10-26 |
generated |
by process:wiki-ingest on 2026-10-26 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — li-2024 |
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