Critics of charter schools have long worried that they engage in “creaming,” attracting the best students and most engaged parents and leaving neighborhood public schools the rest. But a more serious question is whether charter schools have contributed to the re-segregation of schools by race.
A study of Indianapolis charter schools suggests that, in some cases, they have.
The study, conducted by Johns Hopkins University education professor Marc Stein and published last summer in the American Journal of Education, found that charter-school choice in Indy led to “higher degrees of racial isolation and less diversity” than in the public schools the students were leaving.
African-American students were more likely to enroll in charter schools with a higher concentration of black students than the neighborhood schools they left; and white students more likely to enroll in schools with a higher percentage of white enrollment.
The average white student in the analytic sample chose a charter school that enrolled 13.9 percentage points more white students and 13.1 percentage points fewer black students than their previously enrolled school. Concomitantly, black students chose to enroll in charters with enrollments that were 9.2 percent more black and 5.6 percent less white than their former schools.
As a result, charter schools were becoming more racially isolated. In 2008-09, only one charter school in the study met the city desegregation target of having its enrollment of black students within 15 percentage points of Indianapolis Public Schools. When the charter schools opened, five met the target.