The voucher program showed there was “a statistically significant positive impact on reading test scores, but not math scores.”
The reading test scores represented a gain of more than three months of learning.
Results were limited to certain groups of students; students who exhibited gains were the students who entered the program from schools that were NOT in need of improvement (SINI). Those that entered the program in the upper two-thirds of the test score distribution, and those who entered in grades K-8. Females also seemed to benefit.
Because of the 5 federal studies that analyzed the program and found it ineffective, In 2009 funding was cut from 13 million to 9 million and a plan was set into place to fade out the OSP vouchers- due to the lack of promised results.
The program was scheduled to end in 2008. However, additional funding was given under the stipulation that no new students could enter the program; however students already in the voucher program could maintain a voucher through high school graduation. (Today they are still serving 1,300 students)
2010 Department of Education report stated that the use of vouchers had no statically significant impact on overall student achievement in math and reading.