Illinois' Top 25 Most Improved Schools in 2015

Some Illinois schools have taken big steps up between 2014 and 2015, according to SchoolDigger.

The website tracks school performance and ranks the top schools in the state by calculating an Average Standard Score using recent test scores across grades. By comparing the 2014 and 2015 scores, SchoolDigger calculated which schools improved by moving closer to the top of the state’s rankings.

This year’s rankings used the new Partnership for Assessment of Readiness for College and Careers (PARCC) exam scores. Since some Illinois students didn’t take all or part of the PARCC test, we’ve included the school’s participation rate for both the English and math portions of the exam, using the Chicago Tribune’s score tool.

Here are the state's Top 25 most improved schools in 2015, according to SchoolDigger.

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