Arceneaux Kevin, Johnson Martine, Maes Hermine H
Department of Political Science, Temple University, PA, USA.
Twin Res Hum Genet. 2012 Feb;15(1):34-41. doi: 10.1375/twin.15.1.34.
Political sophistication is a concept that encompasses political reasoning, the coherence of people's issue attitudes, and their knowledge of political processes. To what extent is political sophistication affected by genes and environments? Do these distinct but related measures of sophistication share a common genetic structure? We analyze survey data collected from participants in the Minnesota Twin Registry to estimate influences of genes and environments on variables used to measure political sophistication. Additive genetic factors explain 48-76% of the variation in educational attainment, political interest, and political knowledge, while dominance genetics influence 28% of the variance of ideological consistency. Multivariate analyses show that, although these measures share common genetic and unique environmental factors to a modest extent, much of the variance is explained by specific genetic and unique environmental factors. Ideological consistency appears to be mostly distinct from the other measures, as it is strongly accounted for by unique environmental influences.
政治成熟度是一个涵盖政治推理、人们议题态度的连贯性以及他们对政治进程的了解的概念。政治成熟度在多大程度上受到基因和环境的影响？这些不同但相关的成熟度衡量指标是否共享一个共同的遗传结构？我们分析了从明尼苏达双胞胎登记处的参与者收集的调查数据，以估计基因和环境对用于衡量政治成熟度的变量的影响。加性遗传因素解释了教育程度、政治兴趣和政治知识变异的48%-76%，而显性遗传影响了意识形态一致性方差的28%。多变量分析表明，尽管这些指标在一定程度上共享共同的遗传和独特环境因素，但大部分方差是由特定的遗传和独特环境因素解释的。意识形态一致性似乎与其他指标大多不同，因为它主要由独特的环境影响所解释。
