There are many good reasons to oppose a federal school voucher program, but a supposed lack of evidence that school choice improves student outcomes isn’t one of them. Sadly, Sen. Patty Murray (D-WA), the ranking minority member of the U.S. Senate’s education committee, repeated this canard during the debates over a proposed amendment that would have added a federal school voucher program to the No Child Left Behind replacement bill:
What’s more, studies of voucher programs in Milwaukee and the District of Columbia have shown that they do not improve students’ academic achievements, she said. “Study after study has shown that vouchers do not pay off for students or taxpayers,” Murray said.
That’s simply not true. According to Dr. Patrick Wolf, coauthor of the only longitudinal study of the effect of Milwaukee’s voucher program, “school choice in Milwaukee has had a modest but clearly positive effect on student outcomes.”
First, students participating in the Milwaukee Parental Choice (“voucher”) Program graduated from high school and both enrolled and persisted in four-year colleges at rates that were four to seven percentage points higher than a carefully matched set of students in Milwaukee Public Schools. Using the most conservative 4% voucher advantage from our study, that means that the 801 students in ninth grade in the voucher program in 2006 included 32 extra graduates who wouldn’t have completed high school and gone to college if they had instead been required to attend MPS.
Second, the addition of a high-stakes accountability testing requirement to the voucher program in 2010 resulted in a solid increase in voucher student test scores, leaving the voucher students with significantly higher achievement gains in reading than their matched MPS peers.
In the final year of the study, Milwaukee voucher students in grades 3-9 performed about 15 percent of a standard deviation higher on standardized reading tests, “a modest but meaningful educational difference.” Moreover, the study concluded that Milwaukee district-school students were “performing at somewhat higher levels as a result of competitive pressure from the school voucher program.” And contrary to Sen. Murray’s assertion that “vouchers do not pay off for taxpayers,” the study found that the voucher program saved the state nearly $52 million in fiscal year 2011 because the vouchers were worth about half of the cost per-pupil at the district schools.