Edwards Tobias, Giannelis Alexandros, Willoughby Emily A, Lee James J
Department of Psychology, University of Minnesota Twin Cities.
Intelligence. 2024 May-Jun;104. doi: 10.1016/j.intell.2024.101831. Epub 2024 Apr 6.
Intelligence is correlated with a range of left-wing and liberal political beliefs. This may suggest intelligence directly alters our political views. Alternatively, the association may be confounded or mediated by socioeconomic and environmental factors. We studied the effect of intelligence within a sample of over 300 biological and adoptive families, using both measured IQ and polygenic scores for cognitive performance and educational attainment. We found both IQ and polygenic scores significantly predicted all six of our political scales. Polygenic scores predicted social liberalism and lower authoritarianism, within-families. Intelligence was able to significantly predict social liberalism and lower authoritarianism, within families, even after controlling for socioeconomic variables. Our findings may provide the strongest causal inference to date of intelligence directly affecting political beliefs.
智力与一系列左翼和自由主义政治信仰相关。这可能表明智力直接改变了我们的政治观点。或者，这种关联可能受到社会经济和环境因素的混淆或中介作用。我们在300多个亲生和收养家庭的样本中研究了智力的影响，使用了测量的智商以及认知表现和教育程度的多基因分数。我们发现智商和多基因分数都能显著预测我们所有的六个政治量表。多基因分数在家庭内部预测社会自由主义和较低的威权主义。即使在控制了社会经济变量之后，智力在家庭内部仍能显著预测社会自由主义和较低的威权主义。我们的研究结果可能为智力直接影响政治信仰提供了迄今为止最有力的因果推断。
