[Source: The Atlantic]
For more than a decade, standardized-test scores have been the dominant metric for measuring what public-school students know and are able to do. No Child Left Behind, the sweeping federal education law enacted in 2002, ushered in a new era of student testing and school compliance. And in the years that followed—to meet targets and avoid sanctions—education leaders at the local and state levels have sought a variety of ways to boost students’ performance on tests, including extending the school day and giving bonus pay to teachers based on students’ test scores. Even less conventional methods, such as banning cell phones and offering yoga-like exercises, emerged as school administrators pursued the holy grail of high standardized-test scores.