Conspiracy mentality and political orientation across 26 countries

Across 26 countries, Imhoff et al. find that conspiracy mentality is more prevalent at both ends of the political spectrum than the centre. This U-shaped pattern is accentuated for supporters of political parties not in government, particularly on the political right. People differ in their general tendency to endorse conspiracy theories (that is, conspiracy mentality). Previous research yielded inconsistent findings on the relationship between conspiracy mentality and political orientation, showing a greater conspiracy mentality either among the political right (a linear relation) or amongst both the left and right extremes (a curvilinear relation). We revisited this relationship across two studies spanning 26 countries (combined N = 104,253) and found overall evidence for both linear and quadratic relations, albeit small and heterogeneous across countries. We also observed stronger support for conspiracy mentality among voters of opposition parties (that is, those deprived of political control). Nonetheless, the quadratic effect of political orientation remained significant when adjusting for political control deprivation. We conclude that conspiracy mentality is associated with extreme left- and especially extreme right-wing beliefs, and that this non-linear relation may be strengthened by, but is not reducible to, deprivation of political control.

Automated summary

This study finds that conspiracy mentality is more prevalent at both ends of the political spectrum than the center, particularly on the political right. Previous research yielded inconsistent findings, but this study found evidence for both linear and quadratic relationships, with small and heterogeneous effects across countries.