Social and Behavioral Sciences Commons^™

Can Cooler Heads Prevail? New Media Technology And Affective Polarization, Brian Kendall Watson

LSU Doctoral Dissertations

Are new media technologies stirring up negative partisan feelings in the American public? Can researchers find ways of using new media tools to reduce affective polarization? Relying on a series of experiments featuring online newsfeeds and social media discussions, this dissertation seeks to answer these questions by testing the influence of partisan news and political discussions in realistic Internet environments. Two custom news “portals” (2016, 2018) expose participants to actual partisan news content. Two Facebook discussion experiments (2017, 2019) randomly assign participants to start real political discussions on their personal social media accounts, using discussion-initiation strategies designed to reduce partisan …