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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