The Danish Political Twin Study: Political Traits in Danish Twins and the General Population
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TL;DR
Very similar means and variances are found for most of the constructed scales of political attitudes and behaviors in the two surveys, suggesting that the twin study can be used to make inferences on the heritability of several political traits in the Danish population.
Abstract
We compare a recent Danish twin survey on political attitudes and behaviors to a nationally representative survey covering similar topics. We find very similar means and variances for most of our constructed scales of political attitudes and behaviors in the two surveys, although even small differences tend to be statistically significant due to sample size. This suggests that the twin study can be used to make inferences on the heritability of several political traits in the Danish population.