Stephen Dyer, former legislator and current Fellow at Innovation Ohio, writes:

As you know, I’ve contended for years that if charters receive money and kids from all over the state, their overall performance should be compared with the overall performance of all Ohio school districts.

However, as an exercise, I decided to look at Ohio’s urban building performance versus that of charters. And despite the fact that Ohio’s urban buildings typically have 24% higher rates of disabled students and nearly 25% higher rates of minority students, Ohio urban buildings perform about the same as charters. And this is despite the fact that the 90 lowest performing charters aren’t included because they’ve been carved out of these comparisons by the Ohio General Assembly. http://bit.ly/2hw3fhB

In the report that is linked, he expands:

Ohio’s urban buildings perform just about the same as Ohio’s charter schools.

Here’s the issue though:

Ohio’s urban buildings typically (my short hand for median) have a 26 percent higher rate of disabled children and a 23 percent higher rate of minority children than charter schools.

A remarkable 94 percent of all major urban buildings have more than 95 percent of their students classified as economically disadvantaged. Meanwhile, 65 percent of charters fit that bill.

Yet despite these greater challenges, Ohio’s major urban buildings typically have nearly identical attendance rates, slightly less chronic absenteeism and just about equal report card performance, looking at percentages of A, B, C, D, and F grades. Charters have slightly higher percentages of As, Bs and Cs, and lower percentages of Ds and Fs, but the difference is statistically insignificant.

So despite the fact charters have fewer demographic barriers to success on our test-based report card and about half of their kids don’t even come from the urban districts, charters are still unable to perform significantly better than their major urban counterparts — the most challenged group of schools in the traditional public school system.

Only about 260 of Ohio’s 370 charters are included in this comparison. It’s clear that the other 90 — mostly dropout recovery schools located in urban districts — are among the worst-performing schools in the entire country. So the percentage of poor charter grades is likely far higher than the comparison I’m currently making.