At age 12, mathematics is more strongly correlated with reading comprehension than with word decoding at the phenotypic latent-factor level¶
Claim · All claims
Evidence · 1 study · associationalr3·q3
Currency · newest study 2012 · 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.
q3 i? The latent-factor phenotypic correlation between mathematics and reading comprehension (.79) was significantly greater than that between mathematics and word decoding (.51). → Harlaar 2012
Evidence¶
Harlaar 2012¶
Harlaar, N., Kovas, Y., Dale, P. S., Petrill, S. A., & Plomin, R. (2012). Mathematics is differentially related to reading comprehension and word decoding: Evidence from a genetically-sensitive design. Journal of Educational Psychology, 104(3). https://doi.org/10.1037/a0027646
q3 · i? · associational · r3
Phenotypic SEM analysis of latent factors in a population-based cohort of 5162 twin pairs assessed at age 12 (M = 11.87 years). The latent correlation between mathematics and reading comprehension was ".79, CI: .77, .80", significantly greater than the mathematics–word decoding correlation of .51.
"the association between mathematics and reading comprehension (.79, CI: .77, .80) was significantly greater than the association between mathematics and word decoding (.51; CI: .49, .53)."
Discussion¶
Learner Variables¶
- Decoding — predictor: learners who differ on it differ in outcomes
Related Claims¶
- The genetic correlation between mathematics and reading comprehension (.76) is significantly higher than between mathematics and word decoding (.50) — related
- Shared environmental influences on mathematics, word decoding, and reading comprehension are nearly identical across the three domains — related
- Word decoding is significantly more heritable (.84) than mathematics (.60) and reading comprehension (.64) at age 12 — related
- Genetic influences drive the phenotypic correlations between cognitive skills and reading components — related
- Etiological links between reading skills and mathematics did not differ across the specific mathematics tests used — related
- A common genetic factor influences mathematics, word decoding, and reading comprehension, with substantial genetic overlap across all three domains — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
mathematics-more-correlated-with-reading-comprehension-than-decoding |
title |
At age 12, mathematics is more strongly correlated with reading comprehension than with word decoding at the phenotypic latent-factor level |
description |
At age 12, mathematics is more strongly correlated with reading comprehension than with word decoding at the phenotypic latent-factor level |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2012 |
generated |
by process:wiki-ingest on 2026-10-25 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — harlaar-2012 |
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