D.C. schools investigate security breaches in 2011 tests

D.C. school officials are investigating 14 security breaches by students and teachers during last month’s standardized testing, after throwing out last year’s scores from three classrooms with “evidence or a strong suspicion of a test security violation.”

Amid heightened scrutiny of the chronically troubled school system’s large testing gains, the Office of the State Superintendent ordered an investigation into 18 classrooms with a suspicious number of incorrect answers erased and corrected in the 2010 testing.