Ohio has done its very best to promote charters and vouchers. But it did a great disservice to charters by putting them in the state base. The data are there for all to see: with only a few exceptions, charter schools perform worse than public schools.

The latest release of data shows not only that graduates of public schools were more likely to graduate from college than graduates of charter schools, it also shows that achievement gaps grow wider in charter schools, in contrast to public schools.

Stephen Dyer of Innovation Ohio writes:

“Charter schools saw far greater performance gaps in reading and math than school districts. And, more troubling, a far greater percentage of gap growth compared with the previous school year.

“So achievement gaps are growing wider and quicker in Ohio charter schools than Ohio school districts…

“For example, more than 21 percent of charter school achievement gaps for African-American students grew larger in reading. That happened less than 10 percent of the time in school districts. Meanwhile, charter school reading achievement gaps for poor students grew at three times the rate of school districts. Overall, reading achievement gaps in Ohio charter schools grew bigger at more than 4 times the rate of their school district competitors.

“The same holds true for math scores. African-American achievement gaps grew at a 40 percent higher rate in Ohio charter schools and poor student gaps grew nearly 50 percent more. Overall, achievement gaps for all students grew larger at a 60 percent greater rate in Ohio charter schools than school districts.

“While it is true that more times than not Ohio’s charter schools shrank rather than grew the gaps, Ohio school districts were simply far better at shrinking their prior year’s gaps than their free market counterparts.

“What does this mean? It means that far from granting greater equity for disadvantaged students, as many choice advocates claim, with some even suggesting that access to charter schools is a civil right, Ohio charter schools actually exacerbate achievement gap issues, which is the exact opposite of the civil rights movement’s goal.”