Moore's Theory of Transactional Distance suggests that dialogue, structure, and learner autonomy are the key elements delineating the educational transaction in distance learning environments. However, the conceptualizations of these concepts in a telecommunication era have not been systematically addressed. By investigating 121 learners' experiences with videoconferencing, this study identified the dimensions (factors) constituting dialogue, structure, and learner autonomy in such a learning environment. Exploratory factor analysis using a principal axis factor method was carried out. It was concluded that each of these three concepts represented multifaceted ideas. Dialogue consisted of three dimensions: in-class discussion, out-of-class electronic communication, and out-of-class face-to-face interaction. Structure contained the dimensions of course organization and course delivery. Learner autonomy was comprised of independence and interdependence. The results of this study can inform videoconferencing researchers and practitioners of the factors of the educational transaction that should be considered in videoconferencing courses.