A commenter notes there is even more wrong with VAM:
There are way more things wrong with VAM.
It is good news though that the judge is onto them.
The VAM is also not allowing the teacher to earn a good rating based on their own scores. They are rated based on how other teachers scored.
For that reason you can't know in advance what it is you have to do. The criteria that your score is based on is shifting and not concrete.
VAM is also not transparent so that a teacher can understand in advance how they will be rated as is required by law.
VAM is also purported to be a growth model, however, it is not capable of showing the kind of vertical growth that needs to be measured from year to year.
And let's not forget that the Cut Scores are decided AFTER the kids take the test. And each year the scale changes. Not very scientific if you ask me.
It sounds like the Ledermans case is going well. Finally the charade is being exposed publicly for what it really is: a convoluted SCAM.
Indeed - there is so much that is wrong with VAM as an evaluation model
It's accountability moment has come.
We shall see if it is rated "ineffective" and thrown onto the trash heap where it belongs.