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Article

Do heritability estimates of political phenotypes suffer from an equal environment assumption violation? Evidence from an empirical study.

Twin research and human genetics : the official journal of the International Society for Twin Studies - 1 Feb 2012

Littvay Levente

Abstract excerpt

Using data from the Minnesota Twins Political Survey, this paper tests for the presence of unequal environments (EEA) by zygosity in political attitudes. Equal environment measures used include shared bedroom, friends, classes, and dressing alike. Results show an EEA violation at p < .05 in 5% of the models tested. The violations' impact on heritability estimates and their confidence levels appear random in...

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Identifiers

PMID: 22784448
DOI: 10.1375/twin.15.1.6

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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