"Research on fluency -- the ease of information recall -- and familiarity bias in politics shows that people tend to remember information, or how they feel about it, while forgetting the context within which they encountered it. Moreover, they are more likely to accept familiar information as true. There is thus a risk that repeating false information even in a fact-checking context, may increase an individual's likelihood of accepting it as true."
Credit: Lazer, D. M., Baum, M. A., Benkler, Y., Berinsky, A. J., Greenhill, K. M., Menczer, F., ... & Schudson, M. (2018). The science of fake news. Science, 359(6380), 1094-1096.
Credit: Facing History and Ourselves. Lesson 3: "Confirmation and Other Biases."