Full-scale IQ is genetically related but not redundant with common cognitive variance¶
Claim · All claims
Evidence · 1 study · associationalr3·q3
Currency · newest study 2016 · 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? Full-scale IQ was highly phenotypically correlated with the shared cognitive ability latent variable, with genetic influences accounting for 92% of this correlation. → Christopher 2016
Evidence¶
Christopher 2016¶
Christopher, M. E., Keenan, J. M., Hulslander, J., DeFries, J. C., Miyake, A., Wadsworth, S. J., Willcutt, E., Pennington, B., & Olson, R. K. (2016). The Genetic and Environmental Etiologies of the Relations between Cognitive Skills and Components of Reading Ability. Journal of Experimental Psychology: General, 145(4), 451-466. https://doi.org/10.1037/xge0000146
q3 · i? · associational · r3
An additional analysis showed that full-scale IQ was "highly phenotypically correlated with the shared cognitive ability latent variable (rp = .74)".
"Full-scale IQ from the Wechsler (either Wechsler, 1974 or Wechsler, 1991 as the test administered changed halfway through data collection) was highly phenotypically correlated with the shared cognitive ability latent variable (rp = .74), and genetic influences accounted for 92% of this correlation."
Discussion¶
Related Claims¶
- Cognitive and reading skills share large amounts of genetic variance within domains — related
- Genetic influences drive the phenotypic correlations between cognitive skills and reading components — a broader claim this one bears on
- Common cognitive genetic variance is highly correlated with common reading genetic variance — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
fsiq-genetically-related-not-redundant-with-common-cognitive-variance |
title |
Full-scale IQ is genetically related but not redundant with common cognitive variance |
description |
Full-scale IQ is genetically related but not redundant with common cognitive variance |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2016 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — christopher-2016 |
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