“The Case for Voucher Expansion” is Weak
Post-Crescent Article Lays Out the Case
Jim Bender’s article entitled “The Case for Voucher
Expansion” that appeared in the Post-Crescent
on May 23, 2013 lays out the case for public funding private school vouchers,
and it is a very weak case. Mr. Bender makes two important points. The first is
that “data shows that students in parental choice programs graduate at higher
rates than their public school counterparts and are more likely to enroll in
college.” Unfortunately, things are not
so clear. The findings to which Mr. Bender refers come from a 5-year,
longitudinal study of comparing a sample of students in Milwaukee’s Parental
Choice Program (MPCP) voucher program with a matched sample of students in
Milwaukee Public Schools (MPS). For detailed
reviews of the reports of the study’s findings, visit the website of the National
Education Policy Center.
The Finding is Based on Fewer Than Half of the Students in
the Sample
The study was based on carefully drawn matched samples that were
chosen at the beginning of the 5-year period, but of course, the students in
the samples did not always stay put for 5 years. In fact, 56% of the students
in the MPCP sample left the program before the end of the period. The
finding that the MPCP students were more likely to graduate and enroll in
college than their MPS counterparts was based only on those who remained in the
sample at the end of the five years.
No results were reported for the large number who left the program. So,
we do not know what happened to them. Did they graduate? Did they go to college? Did they move to
other cities? We don’t know.
The Differences Were Too Weak to Be a Basis for Policy
Decisions
In addition, the differences between MPCP students and MPS
students were found to be statistically significant only by using an unusually
loose definition of statistical significance.
The differences between MPCP students and MPS students were so small
that they were significant only at the level of p = .10 instead of the more usual
p = .05. This is important because the
study used a very large sample size (more than 800), and with large samples
sizes, statistical significance is easy to obtain. In short, what we have here is a very weak
finding of a very small difference, and no conclusions about the general value
of voucher programs can be drawn from it.
Parental Choice is Not the Issue
Mr. Bender’s other important point is that parents ought to
be able to choose where to send their children to school. No one can quarrel with this sentiment, but
parental choice is not the issue. Public funding is the issue. No one denies the right of a parent to send
his or her children to private schools. The question is: who should pay the
tuition?
Private schools have always played an important role in our
educational system. In our own Fox Cities,
generations of immigrant parents struggled and sacrificed to send their
children to Catholic or to Lutheran schools.
The schools had and continue to have scholarship programs to help
families that cannot afford their tuition. Because of these scholarships, parents already
have the choice to send their children to private schools. Public funding will not change that, but it will
drain scarce dollars from our public schools.
We Have Great Public Schools. We Should Not Weaken Them
Wisconsin has some of our country’s very best public
schools. We have them in part because we
have consistently supported them. We have not diverted desperately needed
dollars to the support of private schools instead, and we should not do so
now. People come to live here because of
the quality of our schools. Businesses
locate here because of the quality of our schools. They are our very best investment. Why would we want to weaken them by diverting
funds to private school vouchers? Mr.
Bender would like us to think that Milwaukee’s experience with vouchers offers
proof that they make a big difference in students’ lives, but his evidence is
very weak. We should not abandon something that has worked well for us for many
on the basis of such weak evidence.