I attended a college where most classes had written evaluations and were listed as Pass/Fail on transcripts. In my case classes that I passed did not affect GPA calculations. However, I did take a 1/2 credit Weightlifting class & didn't spend enough time in the gym. Got a no-credit for that one and it DID affect my GPA, they calculated it as a fail. So the credit/no credit thing can't really help you, but it can hurt you. Hope this info helps you out.