ArticlePolitical analysis : an annual publication of the Methodology Section of the American Political Science Association2013
Gene-Environment Interplay in Twin Models.
Article in Political analysis : an annual publication of the Methodology Section of the American Political Science Association, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
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Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Genetic influences on political ideologies: twin analyses of 19 measures of political ideologies from five democracies and genome-wide findings from three populations.Behavior genetics · 2014Pooled it
- Stability of Music Engagement Across Childhood, Adolescence, and Established Adulthood: A Longitudinal Twin and Adoption Study.Developmental science · 2026Article
- Moderating the Heritability of Body Mass Index by Age and Sex With Genomic Data.Genetic epidemiology · 2026Article
- Family SES amplifies genetic influences on organized activity involvement from childhood to young adulthood: evidence from the German twin family panel.Frontiers in sociology · 2026Article
- Using Bifactor Twin Modeling to Assess the Genetic and Environmental Dimensionality of Adult ADHD Symptoms.Behavior genetics · 2025Article
- Do Children Cause the Cognitive Stimulation they Receive? Modelling the Direction of Causality.Behavior genetics · 2024Article
- Delayed tracking and inequality of opportunity: Gene-environment interactions in educational attainment.NPJ science of learning · 2022Article
- Genetic Risk for Smoking: Disentangling Interplay Between Genes and Socioeconomic Status.Behavior genetics · 2022Article
- Incorporating Polygenic Risk Scores in the ACE Twin Model to Estimate A-C Covariance.Behavior genetics · 2021Article
- Pattern Similarity Analyses of FrontoParietal Task Coding: Individual Variation and Genetic Influences.Cerebral cortex (New York, N.Y. : 1991) · 2020Article
- Genetic variation in health insurance coverage.International journal of health economics and management · 2019Article
- A Chip Off the Old Block: Parents' Subtle Ethnic Prejudice Predicts Children's Implicit Prejudice.Frontiers in psychology · 2018Article
- The Effect of 9/11 on the Heritability of Political Trust.Political psychology · 2016Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this article, we respond to Shultziner's critique that argues that identical twins are more alike not because of genetic similarity, but because they select into more similar environments and respond to stimuli in comparable ways, and that these effects bias twin model estimates to such an extent that they are invalid. The essay further argues that the theory and methods that undergird twin models, as well as the empirical studies which rely upon them, are unaware of these potential biases. We correct this and other misunderstandings in the essay and find that gene-environment (GE) interplay is a well-articulated concept in behavior genetics and political science, operationalized as gene-environment correlation and gene-environment interaction. Both are incorporated into interpretations of the classical twin design (CTD) and estimated in numerous empirical studies through extensions of the CTD. We then conduct simulations to quantify the influence of GE interplay on estimates from the CTD. Due to the criticism's mischaracterization of the CTD and GE interplay, combined with the absence of any empirical evidence to counter what is presented in the extant literature and this article, we conclude that the critique does not enhance our understanding of the processes that drive political traits, genetic or otherwise.
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Registered trials
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