Found my answer from a guest:Quick suggestion that I have used to prevent students from skipping questions: On your page, hide your "continue/next page" button. Create a "ready" or "done" button for your question with the action to show your continue/next page button with the condition of your question variable >=0. In other words, ready/done won't work unless the question is answered and the value of the question variable is no longer equal to zero. And since ready/done won't work, the continue/next page button stays hidden and the student can not leave the page until they have attempted the question.
