Education reformers should obey Campbell’s Law | IN 60 SECONDS

When a measurement becomes the goal, it is no longer a reliable indicator of success. First observed by social scientist Donald T. Campbell, this problem corrupts data in all facets of life — from teachers who “teach to the test” to social media stars who “beg for likes”. To serve America’s students well, AEI’s Rick Hess urges school reformers to heed Campbell’s Law.

ARTICLE – Education reforms should obey Campbell’s Law

ARTICLE – Do Impacts on Test Scores Even Matter? Lessons from Long-Run Outcomes in School Choice Research

SOURCE — New York Times; Giving doctor’s Grades

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