In case you missed it (ICYMI): [Value added models] can’t actually do this with sufficient reliability and validity, but school reformers have pushed this approach and now most states use VAM as part of teacher evaluations. Because math and English test scores are available, reformers have devised bizarre implementation methods in which teachers are assessed on the test scores of students they don’t have or subjects they don’t teach. washingtonpost/blogs/answer-sheet/wp/2014/04/13/statisticians-slam-popular-teacher-evaluation-method/
Posted on: Mon, 28 Apr 2014 23:06:59 +0000
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