Fig. 5.

Number of retweets as a function of emotionality and proportion of political tweets. To visualize the interaction of two continuous variables (sentiment and the proportion of political tweets), the panels show the predicted association between sentiment and the number of retweets at the mean proportion of political tweets in the middle panel as well as the M ± SD (left and right panels, respectively). The colored areas indicate the 95% confidence intervals. The results indicate that tweets produced by users with a higher proportion of political tweets show stronger associations between sentiment and content sharing and between negativity and content sharing.