Contracting COVID-19: a longitudinal investigation of the impact of beliefs and knowledge.

Recent work has found that an individual's beliefs and personal characteristics can impact perceptions of and responses to the COVID-19 pandemic. Certain individuals-such as those who are politically conservative or who endorse conspiracy theories-are less likely to engage in preventative behaviors like social distancing. The current research aims to address whether these individual differences not only affect people's reactions to the pandemic, but also their actual likelihood of contracting COVID-19. In the early months of the pandemic, U.S. participants responded to a variety of individual difference measures as well as questions specific to the pandemic itself. Four months later, 2120 of these participants responded with whether they had contracted COVID-19. Nearly all of our included individual difference measures significantly predicted whether a person reported testing positive for the virus in this four-month period. Additional analyses revealed that all of these relationships were primarily mediated by whether participants held accurate knowledge about COVID-19. These findings offer useful insights for developing more effective interventions aimed at slowing the spread of both COVID-19 and future diseases. Moreover, some findings offer critical tests of the validity of such theoretical frameworks as those concerning conspiratorial ideation and disgust sensitivity within a real-world context.