Replication Data for: Inoculation Reduces Misinformation: Experimental Evidence from Multidimensional Interventions in Brazil

Misinformation is widely seen as a threat to democracy that should be promptly
addressed by scholars, journalists, and policy-makers. However, some of the debated
solutions are either controversial (internet platform regulation) or may be difficult
and costly to implement in many settings (fact-checking corrections). This study
investigates the effectiveness of preemptive interventions, a type of solution that has
received considerably less attention in this debate. Studies show that interventions
through awareness and media literacy campaigns can inoculate citizens against mis-
information, but these interventions are restricted to a few contexts and settings.
Our paper uses two field experiments, one of which conducted in partnership with
Brazil’s main newspaper, to investigate the effectiveness of a multidimensional in-
tervention against misinformation in São Paulo. The findings show that preemptive
interventions can indeed reduce rumor acceptance and provide insights into the
strategies to combat misinformation in democracies.