Reading fluency, spelling, phonemic awareness, listening comprehension and non-word repetition are moderately heritable (SNP-h2 30–50%) in unrelated youth¶
Claim · All claims
Evidence · 1 study · associationalr2·q2
Currency · newest study 2021 · 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.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q2 i? GREML-based SNP heritability estimates ranged between 30% (SE = 0.06) and 50% (SE = 0.07) across the studied measures. → Chin Yang Shapland 2021
Evidence¶
Chin Yang Shapland 2021¶
Chin Yang Shapland, Ellen Verhoef, George Davey Smith, Simon E. Fisher, Brad Verhulst, Philip S. Dale and Beate St Pourcain. (2021). Multivariate genome-wide covariance analyses of literacy, language and working memory skills reveal distinct etiologies. npj Science of Learning 6:23. https://doi.org/10.1038/s41539-021-00101-y
q2 · i? · associational · r2
Univariate GCTA-GREML analysis of ALSPAC measures (Ns per measure ~4121–5749 as printed in Table 1) in unrelated youth aged 7–13. SNP-h2 estimates "ranged between 30% (SE = 0.06) and 50% (SE = 0.07)".
"ranged between 30% (SE = 0.06) and 50% (SE = 0.07) when assessed in unrelated children and adolescents from the general population, irrespective of phenotypic transformation"
Discussion¶
Related Claims¶
- Genetic and residual covariance patterns diverge between oral language and literacy/phonological awareness — related
- Literacy, phonological awareness, oral language and PWM abilities share a large proportion of underlying genetic variation in unrelated youth — related
- Listening comprehension shows trait-specific genetic variance beyond the shared genetic factor — related
- Non-word repetition (PWM) shows trait-specific genetic variance beyond the shared genetic factor — related
- Educational achievement is highly heritable across school years and subjects, with twin heritability around 60% and SNP heritability around 30% — related
- Heritability estimates are population-specific parameters, and the heritability of cognitive skills rises gradually through childhood and adolescence — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
snp-heritability-30-50-percent-literacy-traits |
title |
Reading fluency, spelling, phonemic awareness, listening comprehension and non-word repetition are moderately heritable (SNP-h2 30–50%) in unrelated youth |
description |
Reading fluency, spelling, phonemic awareness, listening comprehension and non-word repetition are moderately heritable (SNP-h2 30–50%) in unrelated youth |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2021 |
generated |
by process:wiki-ingest on 2026-10-26 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — chin-yang-shapland-2021 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.