Requiring private schools
that receive public money to report student test scores improves academic
achievement and ultimately enhances school choice, a Michigan State University
scholar argues.
In a pioneering study,
Joshua Cowen and colleagues found that voucher schools in Milwaukee saw a large
jump in math and reading scores the year after a new law required them to
release the results. During the four years before the law was enacted, math and
reading scores declined or remained stagnant.
The study, which appears
in the journal Educational Evaluation and Policy Analysis, is the first to
provide scientific evidence that accountability measures can improve test
scores in private schools that serve students through tax-funded vouchers.
“School choice is
enhanced when voucher schools or other alternatives supported on the public
dime report more rather than less information,” said Cowen, associate professor
of education policy and teacher education. “It's a victory for
public oversight as well.”
Thirteen states and the
District of Columbia use school vouchers. Other states, including Michigan, have
laws allowing for charter schools, which are public schools that operate
independently.
While voucher and charter
schools have varying levels of accountability, many school-choice proponents
are opposed to the public disclosure of test scores, arguing that competition
alone should be enough to weed out poor-performing schools.
The voucher program is
targeted toward poor students in big cities. Cowen believes there is a role for
school choice to play in these urban areas, where many students are desperate
for high quality schools.
But at the same time, he
said families should have as much information as possible to make their
educational decisions.
“Without public reporting
of academic results, how will the parents of these students know which private
schools are worth choosing and which should be avoided?” Cowen said. “If we
ask them to trust that the market will work, why not let them verify it?”
The study looked at state
standardized tests in Milwaukee’s voucher program from 2006 to 2010.
The program is the oldest and one of the largest school voucher systems in the
nation, serving 21,000 students, or nearly a fifth of Milwaukee's
K-12 population.
A Wisconsin law requiring
public reporting of test scores from voucher schools went into effect during
the last year of the study, 2010, giving researchers a rare look at
private-school test scores both before and after the accountability mandate.
The test scores went up
pretty much across the board, Cowen said, though it's not clear what
fueled the improvement. It could be that education truly improved or perhaps
that voucher schools were simply "teaching to the test,” he said.
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