Once you publish a quiz and make it available to your students, you can make changes to the quiz. Original quiz data is retained as part of any existing student submissions. However, students who have already opened or completed the quiz will not see any changes you make, which may affect their grades. These types of changes include adding new questions or deleting questions from the original quiz.

Additionally, if you change only the point value of the quiz, the student's submitted quiz will show the updated point value, but the current grade won't change in the Gradebook.

If you only need to make changes to existing quiz questions, after editing the quiz you can use quiz regrade to edit certain types of quizzes, or you can add fudge points to individual student quiz scores using SpeedGrader. You can also moderate the quiz to give additional attempts.

Quiz results are easy to read in Canvas. As a student, you can see different types of quiz results, depending on your instructor's preference.

Your instructor may choose to build quizzes that show one question at a time. This means you will receive only one quiz question on your screen at a time instead of all questions posted at once.

Some instructors will allow you to retake a quiz. The quiz will show you if you are allowed more attempts.