New Mexico: Another VAM Disaster

28 May

“value-added measurement–has an unbroken record of failure.”

Diane Ravitch's blog

Thus far, the concept of VAM–or value-added measurement–has an unbroken record of failure. Wherever it has been tried, it has proven to be inaccurate and unstable. Teacher and student records are erroneous. Teachers are judged based on students they never taught. VAM demoralizes teachers, who understand they are being judged for factors over which they have little or no control.

The major perpetrators of this great fraud are Bill Gates, who bet hundreds of millions of dollars on the proposition that test scores could be a major factor in identifying bad teachers and firing them, and Arne Duncan, who required states to use VAM if they wanted to be eligible to get a share of his $4.35 billion Race to the Top fund.

Yet a third perpetrator was Jeb Bush, whose love affair with data is unbounded. Bush went from state to state selling “the Florida miracle,” which supposedly proved…

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