Chicago public school officials have slightly lowered the district’s touted graduation rate after statistical errors were discovered.
The district announced this month that the rate was actually 66.3 percent, not 69.4 percent. It was cut roughly 3 percentage points in every academic year back to 2011.
The changes follow a district inspector general report and an investigation by Chicago’s WBEZ public-radio station and the Better Government Association.
District schools CEO Forrest Claypool deemed it a “relatively minor modification” and said the overall trend still shows the rate going up.
A version of this article appeared in the October 14, 2015 edition of Education Week as In Wake of Errors, Chicago Lowers Graduation Rate