<p>It also seems to me that you could have a problem if there were no cutoff for who could retake a particular exam. Little Susie (or her parents) is uber-driven and will want to retake the exam until she has achieved a 100% on it. Despite getting the high score of 94 on the initial take, she no longer has the high score after little Bobby and the Mates all retake the test 6 times each until they have scored higher than she did. In order to maintain her standing at the top of the heap, thus making her HYPSM worthy, she has to keep retrying as well. </p>
<p>Not only that, if Teacher has set the cutoff at, say, 90% for retakes, little Susie’s parents are going to sue the school system because their DD is no longer on her way to Harvard. As a matter of fact, it behooves Susie to purposefully do poorly on the exam so she can get the lay of the land and then retake it for a better grade.</p>