I need to be able to attempt a quiz as a "test student" without assigning the activity to everyone. If I leave the activity unpublished, the test student can't do it, but if I publish it, I have to assign it to someone. When I publish an activity, even at night or early in the morning, I have students finding it and starting it, even though I don't want them to. Then I can't "unpublish" because students have already started.
Can someone tell me how to assign something to just the test student, or else let the test student see things that have not been published?