Jersey Jazzman: One Study Does Not a Policy Make

Jersey Jazzman: One Study Does Not a Policy Make:

One Study Does Not a Policy Make

by Duke

And so it begins: one working paper comes out - a study that hasn't even been published yet in an academic journal - and we're supposed drop all the previous high-quality research about the unreliability of using test scores to evaluate teachers and embrace Value-Added Modeling (VAM).

Well, at least that's what Star-Ledger columnist Tom Moran says:

But the teachers union, and many obedient Democrats in the Legislature, are resisting all use of test scores in teacher evaluations.

Perhaps this study can help change their minds. It finds that the kids who attended