Audrey Amrein-Beardsley Reviews the Court Decision Slamming VAM in Houston

Diane Ravitch's blog

Audrey Amrein-Beardsley of Arizona State University is one of the nation’s most prominent scholars of teacher evaluation. She is especially critical of VAM (value-added measurement); she has studied TVAAS, EVAAS, and other similar metrics and found them deeply flawed. She has testified frequently in court cases as an expert witness.

In this post, she analyzes the court decision that blocks the use of VAM to evaluate teachers in Houston. The misuse of VAM was especially egregious in Houston, which terminated 221 teachers in one year, based on their VAM scores.

This is a very important article. Amrein-Beardsley and Jesse Rothstein of the University of California testified on behalf of the teachers; Tom Kane (who led the Gates’ Measures of Effective Teaching (MET) Study) and John Friedman (of the notorious Chetty-Friedman-Rockoff study) testified on behalf of the district.

Amrein-Beardsley writes:

Of primary issue will be the following (as taken from Judge…

View original post 680 more words

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