Strauss: ‘Well I’ll be VAMned!’ Why using student test scores to evaluate teachers is a sham

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July 8th, 2015 by schoolbound

If by now you don’t know what VAM is, you should. It’s shorthand for value-added modeling (or value-added measurement), developed by economists as a way to determine how much “value” a teacher brings to a student’s standardized test score. These formulas are said by supporters to be able to factor Read more

Source:: washingtonpost.com