The Actual Test Score Results – and Their Implications
Even the latest experimental results, which show that voucher students in Louisiana and Indiana caught up with or did better than their public school peers on test scores, are less optimistic than prior voucher studies. However, there is not a clear theory for why voucher programs ought to be less-effective now than they used to be, all else equal.
I suspect that the regulatory environment may have something to do with the recent lackluster experimental results. For example, private schools participating in the Louisiana Scholarship Program (LSP) must administer the state standardized test, prohibit parental copay for families using vouchers, report finances to the government, and surrender their admissions process over to the state. As the recent study by me and my colleagues at the University of Arkansas finds, only a third of the private schools chose to participate in the LSP, and those schools were less likely to be the higher quality institutions.
Voucher schools typically spend far less per student.