I know it is not a suggestion for improvement of rules exactly but I believe these accreditation tests still fall under that category.
I have noticed that once you choose an answer (whether true or false) and then go to the next question your answer to that question becomes kind of locked in and even if you go back to the previous question and change it, it does not save your new choice. I do not know if that is a bug or what but I hope it gets fixed. This happened in the advanced test do not know if it also happens in the standard one as well.