Social media are often criticized for being a conduit for misinformation on global health issues, but may also serve as a corrective to false information. To investigate this possibility, an experiment was conducted exposing users to a simulated Facebook News Feed featuring misinformation and different correction mechanisms (one in which news stories featuring correct information were produced by an algorithm and another where the corrective news stories were posted by other Facebook users) about the Zika virus, a current global health threat. Results show that algorithmic and social corrections are equally effective in limiting misperceptions, and correction occurs for both high and low conspiracy belief individuals. Recommendations for social media campaigns to correct global health misinformation, including encouraging users to refute false or misleading health information, and providing them appropriate sources to accompany their refutation, are discussed.

(2020). Defining Misinformation and Understanding its Bounded Nature: Using Expertise and Evidence for Describing Misinformation. Political Communication. Ahead of Print.

As concerns grow about the spread of misinformation through social media, scholars have called for improving the public’s media literacy as a potential solution. This study examines the effectiveness of deploying news literacy (NL) messages on social media by testing whether NL tweets are able to affect perceptions of information credibility and NL beliefs. Using two experiments, this study tests NL tweets designed to (1) mitigate the impact of exposure to misinformation about two health issues (genetically modified foods and the flu vaccine); and (2) boost people’s perceptions of their own media literacy and media literacy’s value to society broadly. Findings suggest that NL messages are able to alter misinformation perceptions and NL beliefs, but not with a single message, suggesting the need to develop tailored and targeted NL campaigns that feature multiple messages and calls to action.

The methods by which politicians and policy makers communicate with the public are constantly adapting to the ever-changing media environment. As part of this changing landscape, this study considers the case of Twitter. Specifically, the authors conduct a survey of political Twitter users, in order to understand their use of the medium and their political behaviors within it. Results indicate that political Twitter users are more interested in and engaged in politics in general and less trusting of the mainstream media. Moreover, the study investigates the extent to which followers of a campaign may affect its overall influence in the Twitterverse.

Historically, major gender differences exist in both political engagement and online content creation. Expanding on these literatures, this study considers the extent to which men and women engage in politics specifically in social media. Novel survey data are employed to test for any gendered differences in encountering and responding to political content via social media. Despite measuring a robust set of political behaviors within social media, few gender differences emerge. Where differences do emerge, they are most likely among the most visible political behaviors, suggesting that women may strategically engage in less visible or less-likely-to-offend political behaviors, as compared to men. This poses important questions regarding political participation, representation, and gender.