Under the Dome

Groups that ranked NC worst on achievement gap index take it back

Groups that ranked North Carolina as the state with the worst widening achievement gap backtracked Tuesday, saying that their method was “not the best way to compare states.”

Education Cities and GreatSchools released an Education Equality Index last week that reported on the gaps in test scores between low-income and wealthier students for states, cities and schools. The groups are standing by their city and school assessments, but said they are removing the state ranking.

“Education Cities and GreatSchools have identified limitations in the interpretation of state-level Education Equality Index (EEI) scores,” the groups said in a statement.

“Because states’ absolute EEI scores are highly correlated to the percentage of students in the state who qualify for free and reduced-price lunch, we have removed the rankings of states based on the EEI score and pace of change pending further review.”

There’s correlation between poverty and performance using their methods, with higher poverty states doing better.

“Because states’ absolute EEI scores are highly correlated to the percentage of students in the state who qualify for free and reduced-price lunch, we have removed the rankings of states based on the EEI score and pace of change pending further review,” the statement said. “We want to ensure that the EEI adds value to the national conversation about the achievement gap, and we plan to further develop the EEI by exploring the possible incorporation of additional national measures.”

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