No Child Left Behind, 10 years old this week, didn't do much for student achievement, but it did plenty to narrow curriculum, spur cheating and boost the standardized testing industry, says this new report from FairTest: Beyond its basic testing mandates, NCLB begot a seemingly endless proliferation of tests and ways to use them: standardized tests in more subjects, interim and benchmark tests. It spawned so-called “formative” tests, which are supposed to help improve instruction but mostly take more time away from it. NCLB also fed the growth of a hugely profitable testing industry, increasing its bottom line while student achievement on NAEP leveled off and achievement gaps stagnated.