Partisan bias in COVID-19 conspiracy theories: news reliance and the moderating role of trust in health authorities

Abstract

Neglecting the role of political bias in the public's perceptions of health authorities could be deceptive when studying potentially politicized COVID-19 conspiracy theories (CCTs); however, previous studies often treated health authorities as a single entity and did not distinguish between different types of CCTs. Drawing from motivated reasoning theory, we investigate the politically motivated nature of CCTs by examining their associations with individuals' media reliance, party identification, conspiratorial mentality, and importantly, trust in (politicized or independent) health authorities. In a national survey conducted in late 2020 (N = 2,239) in Turkey, a heavily polarized context, we found that not accounting for political identities shown in CCTs and health authorities could be misleading. While those with a strong conspiracy mentality were more likely to endorse all types of CCTs, party identification and trust in different types of health authorities led people to believe in certain CCTs aligning with their political attitudes. The influence of media reliance on CCTs depended on the level of trust in health authorities, again suggestive of the influence of political partialities.