According to the D.C. State Superintendent for Education, some 58 percent of D.C. students that started in 2007-2008 graduated within four years. That’s down from the 73 percent reported in 2010, but not because students are doing worse, but rather because schools are more accurately measuring graduation rates. Under an old measure that was recently abandoned, the absolute number of graduates was counted, regardless of whether it took them more than four years to receive their diplomas.

For D.C. school officials, the drop is a good thing.

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Martin Austermuhle blogs at DCist . The Local Blog Network is a group of bloggers from around the D.C. region who have agreed to make regular contributions to All Opinions Are Local.