Published online by Cambridge University Press: 14 April 2014
Extant literature shows a positive link between presidential debates and political knowledge, with findings strongest for low-information voters. Considering presidential debates continue to retain a mass audience, they fulfill an invaluable civic function. Less clear is whether knowledge effects hold across debate formats and agenda topics. Using an experimental method that exposes a sample of undergraduate students to the 2012 US presidential debates, this article explores variance in knowledge effects across formats and topics. We find citizens can learn about issues and candidates but debate format and agenda topics may mediate the effects. We discuss the broader democratic implications of these findings and directions for future debate research.