Under phenotypic assortment NTFD models, parental education shows no environmental effect on offspring educational attainment once genetic influences are accounted for¶
Claim · All claims
Evidence · 1 study · associationalr2·q2
Currency · newest study 2023 · 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? Under all PA models the parent-offspring correlation for EA was entirely genetically mediated, with parental phenotypic transmission estimable at only 0–1% and droppable without fit loss. → Wolfram 2023
Evidence¶
Wolfram 2023¶
Wolfram, T. & Morris, D. (2023). Conventional twin studies overestimate the environmental differences between families relevant to educational attainment. npj Science of Learning 8, 24. https://doi.org/10.1038/s41539-023-00173-y
q2 · i? · associational · r2
NTFD phenotypic assortment model fitting in the TwinLife sample, where phenotypic transmission (P) and passive rGE could be dropped from all three PA baseline models without significant fit decline. The article states the parent-offspring correlation was "entirely genetically mediated".
"Under all PA models the parent-offspring correlation for EA was entirely genetically mediated."
Discussion¶
Related Claims¶
- Adjusting published twin-study ACE estimates for assortative mating raises mean heritability by about 17 points and lowers shared environmental estimates by about 16 points — related
- A Classical Twin Design model of educational attainment in the TwinLife sample estimates shared environmental influence at 43% and additive genetic influence at 34% — related
- The best-fitting NTFD model estimates heritability of educational attainment at 51% and total shared environmental influence at 26%, disaggregated into twin-specific (16%) and sibling-shared (10%) components — related
- Twin-specific shared environments account for a substantial portion of CTD shared-environment estimates for educational attainment and cannot be interpreted as between-family environmental differences — related
- Educational achievement is highly heritable, and the common environmental variance is attributable to SES effects — related
- Genetic and environmental variance components of educational achievement decrease with increasing parental SES — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
parental-education-no-environmental-effect-pa-models |
title |
Under phenotypic assortment NTFD models, parental education shows no environmental effect on offspring educational attainment once genetic influences are accounted for |
description |
Under phenotypic assortment NTFD models, parental education shows no environmental effect on offspring educational attainment once genetic influences are accounted for |
status |
review |
evidence_strength |
mixed |
newest_evidence |
2023 |
generated |
by process:wiki-ingest on 2026-10-26 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — wolfram-2023 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.