If nothing was unclear or difficult, say so. Skip questions about steps you did not experience; use not applicable where appropriate. How did you find captions? What control label was unclear? What language information was missing? Author notes / illustrative keys where applicable: 1. Read for discovery. Keep the specific explanation in the respondent’s own words rather than converting it into an unexplained overall satisfaction score. 2. Read for control meaning. Keep the specific explanation in the respondent’s own words rather than converting it into an unexplained overall satisfaction score. 3. Read for language context. Keep the specific explanation in the respondent’s own words rather than converting it into an unexplained overall satisfaction score.