Currently we are piloting our questionnaires, and I was wondering how to add a validation to a date question: "When did you take medicine X ? ", with the answer option to pick a date from the calendar.
At the start of the questionnaire, we ask for the date of the health consultation, which is today, “current date”.
Can I put a validation that the date of my question on when the participant took their medicine cannot be later than the date of today, so not in the future?
Since the formats of both question is different, I’ve tried different things that I could find on the forum, but I did not manage to find a solution.
Any syntax suggestions are appreciated,