by Mary Cooch.
You can't force them to watch a lecture online - they could simply click on it and leave the room and come back when it is finished. However you can use Activity completion and Restrict access to make it so that they at least have to click on the lecture before they are given access to the quiz. Also - you could embed your lecture into a Moodle Lesson activity because one advantage of this is that there is a completion condition by time spent - ie - student have to spend a certain amount of time in the Lesson before it will be marked complete. So if you make your Lesson required time the required time of the lecture then they might think to watch the lecture while they are waiting for time to pass and the quiz is released to them.