This article offers a comprehensive approach to understanding pandemic-related behavior by tackling both the psychological predictors of belief in conspiracy theories about COVID-19 and their potential consequences for trust in experts and institutions, compliance behavior and vaccine acceptance. Drawing from an observational survey (n = 1028) in Turkey, this article examines: (a) the psychological precedents of believing COVID-19 conspiracy theories; (b) how trust in experts, scientists and health authorities is influential in controlling these beliefs; (c) to what extent conspiracy theory beliefs affect compliance with protective measures; and (d) who is more likely to accept vaccination. Results demonstrate that one of the potential solutions to the influence of conspiracy theory beliefs across an array of attitudes and behaviors is to establish trust in experts, scientists and health authorities.
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