Pundits, politicians, and business leaders continually make claims for what standardized tests can do, and those claims go largely unchallenged because they are in line with popular assumptions about what these tests can do, what the scores mean, and the psychology of human motivation. But what most of what these opinion leaders say-and the public believes-about standardized testing just isn't so. However, few members of the general public, not even concerned parents, have the time or the ...