Do AI detectors work? Students face false cheating accusations

The problem is that professors want a test with high sensitivity and students want a test with high specificity and only one of them is in charge of choosing and administering the test. It's a moral hazard.

Do professors really not want high specificity too? Why would they want to falsely accuse anyone?

No. Professors want students that don’t cheat so they never have to worry about it.

This is an ethics problem (people willing to cheat), this is a multi cultural problem (different expectations of what constitutes cheating) this is an incentive problem (credentialism makes cheating worth it).

Those are hard problems. So a little tech that might scare students and give the professor a feeling of control is a band aid.