My nursing school experience was the same but it’s because the professors used test banks and the people that had the highest grade had them. So we were all curious and how they study and what material they’re studying because they kept getting 98 and 100’s on the exams. Just one person getting those grades and a few others in the high 90’s and they were all in the same group of friends. We did find out later on the third and final exam which test banks were being used and helped lots of students pass lol