Asynchronous online discussions (AODs) are a central component of online courses and have been widely implemented in case-based instruction (CBI). In online CBI, AODs offer learners a medium for making sense of complex problems, as they consider case topics collaboratively with peers and facilitators. Therefore, learners' interactions with others…

While enrollment has been declining across higher education over the last decade, online education is one sector consistently enjoying enrollment gains, making its success indispensable to many institutions. Transactional distance theory has been used to study the experiences of online students and faculty and asserts that dialogue reduces the…