The purpose of offering second attempts at quizzes is to give students a chance to learn the material more thoroughly. However, I find that a subset of students take the second attempt within a minute and clearly guess at the answer. The behavior is self-defeating.
I would like to have the quiz remain closed for a period of time before they can take it again. Is this possible?
(And if you have ideas about why this might be problematic for students, I'm open to listening.)