With the growing popularity of connectivist MOOCs, the aim of facilitators has increasingly shifted from helping students meet completion-oriented goals to encouraging meaningful engagement among participants. In this paper, we study the relationship between platform of engagement and learner participation, controlling for relevant demographic factors of participants including gender, age, and level of education attained. Our study employs four distinct measures of participatory engagement: autonomous learning, knowledge reproduction, information networking, and scholarly engagement. We find that on the public platform of Twitter, participants were more likely to exhibit meaningful engagement patterns across all measures studied than they were on the closed EdX class discussion space
