All Posts Tagged: 'Null Hypothesis'


Teaching, the Null Hypothesis, and the Status Quo

April 18th, 2008 | Category: Teacher Quality

I’ve had a couple of off-line conversations in the last week–one about measuring teacher effectiveness, the other about college graduation rates–that both led me to try answer the eternal question of : Why are academics so often wrong about public policy questions?
The short answer is: they’re trying to answer the wrong question.
The somewhat longer answer [...]