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Wisconsin’s new school grading index: ‘a dog’s breakfast of numbers’

Wisconsin’s new school grading index: ‘a dog’s breakfast of numbers’ | Great Books | Scoop.it

More on the correlation of poverty and school outcomes discussed as value-added measurement. 

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Rescooped by Mark Gillingham from :: The 4th Era ::
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Schooling Beyond Measure

Schooling Beyond Measure | Great Books | Scoop.it

By Alfie Kohn

 

"To be overly enamored of numbers is to be vulnerable to their misuse, a timely example being the pseudoscience of "value-added modeling" of test data, debunked by experts but continuing to sucker the credulous. The trouble, however, isn't limited to lying with statistics. None of these problems with quantification disappears when no dishonesty or incompetence is involved. Likewise, better measurements or more thoughtful criteria for rating aren't sufficient."


Via Jim Lerman
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