Partisan blocking: Biased responses to shared misinformation contribute to network polarization on social media
journal contributionposted on 2022-04-01, 14:27 authored by Johannes Kaiser, Cristian VaccariCristian Vaccari, Andrew ChadwickAndrew Chadwick
Researchers know little about how people respond to misinformation shared by their social media “friends.” Do responses scale up to distort the structure of online networks? We focus on an important yet under-researched response to misinformation—blocking or unfollowing a friend who shares it—and assess whether this is influenced by political similarity between friends. Using a representative sample of social media users (n = 968), we conducted two 2x2 between-subjects experiments focusing on two political issues and individuals’ political ideology as a quasi-factor. The first factor manipulated who shared the misinformation (politically similar vs. dissimilar friend); the second manipulated the misinformation’s plausibility (implausible vs. moderately plausible). Our findings, which replicated across political issues and levels of plausibility, reveal that social media users, particularly left-wing users, are more likely to block and unfollow politically dissimilar than similar friends who share misinformation. Partisan blocking contributes to network polarization on social media.
Swiss National Science Foundation
Early Postdoc Mobility Fellowship scheme (#P2ZHP1_191288)
- Social Sciences and Humanities
- Communication and Media