**IMPORTANT** These steps only applies if you have the "Let Students See Their Quiz Responses" and "Let Students See The Correct Answers" boxes selected in the quiz settings. If you do not have these two boxes selected, students are already unable to see correct answers. If you do have these boxes selected, it is important that you follow these steps to avoid previously enrolled students from giving correct answers to current students in the course.
If you do not want students to be able to see the correct answers to a quiz after a course concludes, please follow these steps:
1. Locate the desired course that contains the quiz by clicking Courses > All Courses, and scrolling down to Past Enrollments. Select the desired course.
2. Find the desired quiz by going to the Quizzes tab.
3. Click the three dots next to the desired quiz and select Edit.
4. Scroll down to the Hide Correct Answers at field and select the date you would like for students to no longer be able to access the correct answers at. You can optionally add a time as well.
5. Scroll to the bottom of the page and click Save.