Supplementary Material for the Paper "The Promise and Challenges of Computer Mouse Trajectories in DMHIs - A Feasibility Study on Pre-Treatment Dropout Predictions"

Empirical evidence suggests that how one moves their mouse holds information on motivation and attention, both valuable aspects otherwise difficult to measure at scale. Further, mouse trajectories can already be collected on pre-treatment questionnaires, making them a promising candidate for early predictions informing treatment allocation. Therefore, this study investigates how to gather and process mouse trajectory data on questionnaires in Digital Mental Health Interventions (DMHI). As a feasibility study, the researchers collected mouse trajectory data from 183 patients filling out a pre-intervention depression questionnaire.