I gave a quiz for which all students began with 2 attempts. The exercise was a difficult one and I want to give everyone who completed it another attempt. However, I have students I would like to block from redoing the assignments because they either a) made no submission (so they have 2 attempts left) or b) submitted the quiz but did not answer any of the questions (most have 1 attempt left). How do I prevent them from redoing the quiz. If I re-open it, they still have attempts left and I see no way to remove attempts in the Moderate This Quiz area. Must I go into quiz setting and manually assign the quiz only to the students I want to be able to access it? This is cumbersome as it means I have to add the vast majority by hand. I'm looking for a way to easily block the few who made no effort to begin with.