Any quiz taken before 1/9/2017 will be subject to the old grading policy, the highest quiz score counts regardless of the number of quiz attempts. Any quiz taken after 1/9/2017 will be subject to our new grading policy, the highest quiz score counts within the first 3 quiz attempts.
We will not be changing anyone's grade if you've already taken a quiz. This policy only affects quiz scores going forward.
If you have already completed a course and have earned credit, you will not lose that credit.