Personally, I never really understood the whole thing about allowing you to back out - simply because you used a computer to take the exam. When you take a paper exam, it's kinda a non-issue, it's not even brought up. I mean, I'm sure you could rip up your answer sheet, but that seems a little extreme...
Anyway, if you choose not to score, you're not listed as failing per se but you are subject to the same retake policy as if you had failed. You'll be listed as a "DNS" (do not score) which is a different classification than failing.
The reason you can't retake is so that you can't brain-stuff to later brain-dump the information (possibly for profit as is widely done in the IT field) and because (as those of you who have take psych/OB know) you're likely to do better simply because of repeated exposure and that skews the equating.
So, yeah, DEAL.
You did the work, see the results. Your college won't even post it to your transcript if you did fail - so it won't bring down your GPA (if scored and not pass/fail). At best your out cash and time if you fail. But your wiser for the experience.
