Cheater, Cheater, Cheater
I used the same multiple choice questions on my tests in Introduction to Psychology, which is why I don’t return tests for students to keep. I DO return graded answer sheets with missed questions indicated and correct answers supplied.
Missing only that one question, one chance in 25. Putting that same answer that would have been correct if I’d used the previous test, one in four. The chance that she’s not cheating, one in 100. Priceless.
I can’t prove it, but I know it to be so. She’s an ethnic minority, or a veteran, or a disabled student, so moving against her would be more of a problem for me than I’m willing to undertake right now, but on the next test, the questions will be different than from previous terms.