Associations between the rearing environment and children's outcomes can be partly or fully due to genetic confounding rather than causal environmental transmission¶
Claim · All claims
Evidence · 1 study · theoreticalr3·q1
Currency · newest study 2021 · checked against its sources 2026-10-27 (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.
q1 i? The correlation between the rearing environment and children's traits can be partly or fully due to genetic confounding, so causal conclusions between rearing environment and children's traits are not possible without controlling for genetic transmission. → Hart 2021
Evidence¶
Hart 2021¶
Hart, S. A., Little, C. & van Bergen, E. (2021). Nurture might be nature: cautionary tales and proposed solutions. npj Science of Learning 6:2. https://doi.org/10.1038/s41539-020-00079-z
q1 · i? · theoretical · r3
Theoretical argument in this perspective article: decades of behavioral genetics work show genetic influences on both children's traits and measures of the environment, so "the environment that parents provide should not be considered in the absence of genetic influences". No new data are analyzed; the article states no datasets were generated or analyzed.
"behavioral genetic studies show that parents influence their children by providing them with both environment and genes, meaning the environment that parents provide should not be considered in the absence of genetic influences"
Discussion¶
Related Claims¶
- Genetic factors account for a substantial share of variation in educational outcomes and related behavioral traits — a broader claim this one bears on
- Twin ratings show chaos in the home is partially genetically confounded with school achievement (22% genetic variance; 37% of association via shared genes) — a narrower finding that bears on this claim
- Under phenotypic assortment NTFD models, parental education shows no environmental effect on offspring educational attainment once genetic influences are accounted for — a narrower finding that bears on this claim
- Non-transmitted parental polygenic scores predict offspring educational attainment, evidencing genetic nurturing effects in adults — related
- Direct causal effects of self-control and grit account for only 4.4% of school performance variance, with self-control the stronger causal predictor — related
- Educational achievement is highly heritable, and the common environmental variance is attributable to SES effects — 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
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
genetic-confounding-rearing-environment-causal-claims |
title |
Associations between the rearing environment and children's outcomes can be partly or fully due to genetic confounding rather than causal environmental transmission |
description |
Associations between the rearing environment and children's outcomes can be partly or fully due to genetic confounding rather than causal environmental transmission |
status |
review |
evidence_strength |
weak |
newest_evidence |
2021 |
source_checked |
2026-10-27 |
generated |
by process:wiki-ingest on 2026-10-27 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — hart-2021 |
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