Despite evidence showing otherwise, it remains conventional wisdom in many parts of the education world that private schools do a better job of educating students, with superior standardized test scores and outcomes. It is one of the claims that some supporters of school choice make in arguing that the public should pay for private school education.
The only problem? It isn’t true, a new study confirms.
University of Virginia researchers who looked at data from more than 1,000 students found that all of the advantages supposedly conferred by private education evaporate when socio-demographic characteristics are factored in. There was also no evidence found to suggest that low-income children or children enrolled in urban schools benefit more from private school enrollment.
The results confirm what earlier research found but are especially important amid a movement to privatize public education — encouraged by Education Secretary Betsy DeVos — based in part on the faulty assumption that public schools are inferior to private ones.
DeVos has called traditional public schools a “dead end” and long supported the expansion of voucher and similar programs that use public money for private and religious school education. According to the National Conference of State Legislatures, 27 states and the District of Columbia have policies allowing public money to be used for private education through school vouchers, scholarship tax credits and education savings grants.
The new study was conducted by Robert C. Pianta, dean of U-Va.’s Curry School of Education and a professor of education and psychology, and Arya Ansari, a postdoctoral research associate at U-Va.’s Center for Advanced Study for Teaching and Learning.
“You only need to control for family income and there’s no advantage,” Pianta said in an interview. “So when you first look, without controlling for anything, the kids who go to private schools are far and away outperforming the public school kids. And as soon as you control for family income and parents’ education level, that difference is eliminated completely.”
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