Questionnaire Completion Logs

Log files are also provided that detail information about attempted questionnaires and completion rates.

The completion_log files are sent separately from the questionnaire events. If the participant has not completed the questionnaire, the completion log files are only sent after the completion window is over. If the participant has completed or attempted to complete the questionnaire, the completion logs would usually be sent along with the questionnaire data. However, there are times when they remain in the cache and are not yet sent to the server.