Is there a way to add something to flag unanswered questions before moving on to another page? It is okay if participants don’t answer every question, so I don’t want to require it, but I want to make sure that they haven’t accidentally missed any questions.
Not sure if there is an easy way to do that. I would add an option-something like “refused to answer” if an enumerator is collecting the data or “prefer not to answer” if self administered. I would then make all questions required. This will ensure that the questions with this option selected were largely intentional rather than missed accidentally.
I prefer the solution of researchers2009!
Another option could be to add a mandatory acknowledge type confirmation question after the question (with relevant filter on empty preceding response). So, to tick the acknowledge as user would be needed.