Engagement Habits: Visualisation of Longitudinal Learner Analytics with Frequency Heatmaps

Learning analytics comes with the promise to enhance visibility, providing greater self-awareness and more informed learning support [1]. A common approach is to track different activities from the learner experiences over time. Such longitudi- nal data represents the learner’s habits, difficulties or progresses, and how these develop in time. One of the main challenges related to longitudinal data is its variety in terms of frequency and duration. It reflects the individuality of learner experiences, but makes them very difficult to put in a common form that allows for meaningful comparison. Yet, a comparison of individual learner behaviours, would allows for the implementation and reuse of effective learning interventions. In this paper, we propose a technique to visually present longitudinal data with a focus on periodic patterns exhibiting the development of habits.