Open-mindedness predicts support for public health measures and disbelief in conspiracy theories during the COVID-19 pandemic across 68 countries

The COVID-19 pandemic has illustrated the importance of public support for non-pharmaceutical public health interventions and the perils of rampant spread of misinformed and conspiratorial beliefs. Open-minded epistemic attitudes may be associated with adherence to public health recommendations and protect against holding false beliefs. In a large (N = 46,745 from 68 countries) global sample collected during the first months of the COVID-19 pandemic, we find that a six-item self-report measure of open-mindedness predicts decreased belief in COVID-19 conspiracy theories, increased physical distancing, increased engagement in recommended hygienic behaviors, and increased support for public health policies that aimed at decreasing COVID-19 transmission. In fact, out of 17 individual difference measures that we examined, open-mindedness proved to be the strongest or among the strongest predictors of rejecting conspiracy beliefs, of supporting physical distancing and public health policies, and of engaging in physical hygiene behaviors. In exploratory analyses of the open-mindedness measure, we found that public health support is associated with a learning-orientedfactor while conspiratorial beliefs were associated with a threat-oriented factor. These results suggest that it will be important to investigate whether open-mindedness can be cultivated or encouraged through educational or other interventions to ensure that public health is protected and that conspiracy theories do not spread.