Doesn't work in practice, though - you end up with schools "teaching to the tests", to the detriment of other unscored qualities. The obvious solution: more te

Doesn't work in practice, though - you end up with schools "teaching to the tests", to the detriment of other unscored qualities. The obvious solution: more tests, and more bureaucracy. By the time you've got enough tests you might as well have a state-run school.