Abstract
We propose that political polarization stems in part from differing conceptions of one’s nation. Four studies tested the hypothesis that national essentialism – conceiving one’s nation as possessing an inherent, unchanging essence – underlies three political ideologies: right-wing authoritarianism, social dominance orientation, and nationalism. Study 1 (n = 263) provides correlational evidence that essentialist thinking about the U.S. positively predicted all three ideological variables, as well as support for conservative policies regarding religion, taxes, the environment, and immigration. Converging experiments show that prompting participants to think about the U.S.’s essence increased support for RWA and nationalism, but not SDO. Study 2 (n = 164) compared an essentialist to a non-essentialist framing of the U.S., while Study 3 (n = 150) compared essentialist framings of the U.S. to an unrelated concept (music). Parallel mediation analyses show that support for RWA and nationalism mediated the relationship between primed national essentialism and support for conservative policy positions. Study 4 (n = 174) directly replicated Study 2 and went further to test mediators, showing that perceptions of intergroup threat mediated the effect of national essentialism on RWA, while national identification mediated the effect of national essentialism on nationalism. Data and materials are publicly available at: (https://osf.io/srvxk/?view_only=d803fbf4c59c4b7e912f5a345ddb09b9)
PUBLIC SIGNIFICANCE STATEMENT
The research helps better understand one cause of political polarization in the United States. We find that political differences may be rooted in a completely different conceptualization of what the United States really is. Getting to better understand deep causes of political polarization can better help people have productive conversations with people of different political beliefs.