Nonsense. For basic material, as in K-12, people have known how to write good tests for over 50 years and often have. The concepts of reliability, validity, s

Nonsense. For basic material, as in K-12, people have known how to write good tests for over 50 years and often have. The concepts of reliability, validity, separation, difficulty have all been polished at least since 1950, maybe 1930. That the tests are not reliable and valid measures of learning and can easily be significantly 'gamed' and, thus, should not be used to evaluate K-12 teaching is just an unsupported myth being put out by propaganda of the AFT and NEA to protect bad teaching.