A More Sophisticated Analysis of the Nonsense that is “Value-Added Modeling”

Bruce Baker, aka SchoolFinance101, here takes on many of the problems involved with VAM, which supposedly being measures how well teachers are doing their jobs.

Among other things, he analyzed the scores of New York City public schoolteachers, which were published by the NYTimes and NYPost. He appears to find more year-to-year correlations between the scores of teachers working at the same school and the same grade and subject matter than I did (found it to be close to zero), but he still finds the whole VAM thing absurd.

In addition, he points out that the difference between a "good" teacher and a "bad" teacher on the VAM is for their students to get two more multiple-choice questions right (or wrong).

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Published in: on July 22, 2017 at 9:52 am  Leave a Comment  

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