Students saving quiz attempts to finish later

As long as a student saves his quiz (but does not submit), he can finish the quiz later by re-entering it. If you don’t want to allow the student to be able to do this you can create restrictions. When you create the quiz, the Restrictions tab allows you to limit the days a quiz becomes available to the user and a time limit. On the Attempts tab you can also specify if you want to allow the student to attempt the test multiple times.