The Subject Tracker for Online User Testing (STOUT) is a content management system for formal human performance experimentation. STOUT presents tools and operational tasks to each participant. In doing so, it collects: - an intake questionnaire to assess the user’s background and experience as an analyst - operational task performance and confidence in responses i.e. did they get the right answer? How sure are they? - subjective feedback (did they like how the tool worked?) - screen captures - physiological response, which help infer operator workload (how hard did they work?). - View it on GitHub