Social Cohesion in the Fat Liberation Community on Twitter

Abstract

The emergence and persistence of communities has long been of interest to social scientists, and the increasingly digital landscape in which these communities exist present some important theoretical and methodological challenges and opportunities. In this dissertation, I develop methods for identifying and characterizing communities on Twitter and examine the kinds of interactions that affect social cohesion. Using the Fat Liberation community as a case study, I find that there is a core set of users engaged in conversations around criticizing conceptions of Fatness, and I observe partitions in the community differentiated by stylistic approaches to discussion rather than topical focus. I next operationalize hypotheses from Randall Collins' Interaction Ritual Chain theory using novel methods for measuring the effects of engaging in particular types of interactions. I find support for several hypotheses generated directly from this theory in online settings and further find that high-status users play a particularly important role in producing group cohesion - a perhaps underplayed aspect of the theory that may be particularly important in online settings. Finally, I build on conflict theories to hypothesize that exposure to toxic interactions will affect social cohesion - particularly when they involve other high-status users. I do not find support for these hypotheses, however, suggesting further work should investigate the role of toxic behavior by accounting for the situational dynamics produced by interactions.