Some Old Formulas:
1. Formula for achievement level at age t:
2. Formula for comparing current with prior achievement:
3. Formula for NYC Value-Added Model:
It is great to be judged by the test scores of others even though there are so many factors that are totally out of my control. I could probably name in a matter of minutes a few hundred factors in the lives of my students over which I have absolutely no control. I have decided, however, to include just a few here for my
New and Improved VAM Formula:
Ast=βupXid+βidPiot=βpubTlic+λscAhool+√te+∫ac+φher+n0!
The new formula introduces variables which take into consideration all of the factors below:
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