When a student is allowed multiple attempts in a quiz, is there a way for correct answers to be saved so that the students don't need to reenter the correct answer in each subsequent attempt?
LISA, this is not currently possible in Canvas. You can adjust the quiz settings to allow students to view the correct answers after their first attempt; however, when they retake the quiz, they will be presented with a fresh quiz and will not be able to see either the correct answers or the answers they chose in the previous attempt. Of course, if you choose to allow students to see the correct answers, students who are working on a desktop or laptop can open the quiz in a separate window or tab so they can see the answers in the first tab and re-take the quiz in the second tab, flipping back and forth between tabs.
Several feature ideas for the ability to allow students to see the answers they chose in a previous attempt were open for voting in previous voting periods, but were archived due to their low vote totals: Quiz retake work on only incorrect response and Teacher option to allow students to see previous attempt answers for revision, to name a few. Because Canvas users' interests and needs change over time, feature ideas can always be resubmitted for future consideration, so if you'd like to see this implemented in Canvas, consider posting a new feature idea after reading How do I create a new feature idea? and How to write a good feature idea submission.
You might also check out The specified item was not found. where feedback is being collected on a major project to upgrade Canvas quizzes. I could see a benefit to an "elimination" style quiz, where you have to keep answering questions until you get them right, but once correct, you don't have to answer them again. This could be quite helpful for practice quizzes.
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