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what's fundamentally wrong with test-driven regimes

Posted By: Tony Whitson on January 14, 2011
We often hear it said that taking temperatures more frequently does not lower a fever.

But at least the measurement of temperature _is_ a measurement of temperature ...

Testing in schools often is _not_ measuring what we really care about. Test scores can sometimes be used as _proxies_ for measuring what we care about, but the validity of such proxy measures can be undermined by regimes that incentivize the production of test scores, in themselves.

I think there's a useful analogy for explaining how this happens that's provided by reporting of findings concerning the relationship between gait speed and longevity. I've posted something about this at

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 what's fundamentally wrong with test-driven regimes by Tony Whitson on January 14, 2011
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