For the bazillionth time: Teachers, you are not crazy. Data is Bullshit.

Terrific stuff--as always--from Peter Greene. This from 2022. 

Study: Test Data Does Not Help Students Raise Test Scores

If you care about this stuff, you really should be reading 

Mr. Greene's blog: Curmudgucation. 

And consider subscribing. It's great and it's free!