Fig. 1.

Overview of Features According to Categories and Data Collection Methods. Note. We were interested in compliance at the observational level, that is, how participants responded to a single beep, the target beep, at a given time. To this end, we used information about a participant’s response to preceding beeps and information on the current beeps, as represented by the timeline. We assigned this information to different (sub)categories, represented by the colored boxes with selected feature examples. The icons on the left of the boxes depict the respective data collection method. Numbers on the right of the boxes indicate the total number of features for each subcategory. In all, 402 different features were extracted for each beep