The U.S. Department of Education has released a first-ever list detailing state-by-state four-year high school graduation rates, the Huffington Post reports. The data reflects figures from the 2010-2011 academic year, the first year for which all states used a common, more rigorous measure. States last year dumped flawed measurement formulas that often undercounted dropouts and produced inflated results, making cross-state comparisons inaccurate and volatile. The new rate calculation
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