Labeling some fake stories on social media increases the believability of untagged fake stories
This study examines the effects of adding disputed labels to fake news stories on social media outlets like Facebook, in line with the real partnership the social network launched in December 2016. While researchers found that adding warnings to fake content decreased those posts perceived accuracy, they also found that the presence of fake news tags alone also increased the perceived accuracy of untagged fake stories. This "implied truth" effect was stronger among subgroups who were more likely to believe online information (such as young adults and Trump supporters). Participants saw an equal mix of right and left-wing headlines, both fake and real, and answered questions about their validity and shareability.