What happens if a student has to leave for another class before finishing an experiment?
Users can quit at any time and either save the data collected to that point or not. If the experiment is nearly complete, we advise saving the data, but making a note to mark the data file as being an incomplete. In some experiments, e.g., Mental Rotations, students perform in several, independent parts. In such cases, a student might quit after performing two of the three parts, save the data, then return at another time to complete the remaining component. In other multi-part experiments, independence is not a safe assumption and, therefore, it is not possible to resume on a later day at the point where a user previously quit.