Milwaukee’s private school voucher program, now in its twelfth year, is dwarfed by the 30-year-old voucher program in Chile, where almost half of all students attend private voucher schools. The Chilean program is therefore of significant interest to school reformers and researchers looking to make voucher and charter schools a success in the US.
The most recent research, published by the Cato Institute, finds that when the Chilean public school test scores are compared with those of independent private schools and with those of private schools that are part of multi-school networks or franchises, the students in the franchised private schools perform best. (The independent, mom-and-pop private schools do about the same as the public schools.) In addition, the Chilean research indicates the more schools there are in the franchised networks, the better they outperform the others.
The researchers note that in Chile, “The private voucher school sector is essentially a cottage industry. More than 70 percent of private voucher schools are independent schools that do not belong to a franchise.” The franchised schools are either owned by for-profit school management companies; affiliated with non-profit, secular organizations; or part of the Catholic or Protestant school systems.
Do these findings reflect what we know about Milwaukee’s program? Its hard to say, since only one year of comparative data on student performance in voucher schools is available and it does not differentiate between the various types of private schools. However, those data do indicate considerable variability in performance across Milwaukee’s voucher schools–some are producing high scoring students and some are no better than the worst public schools. It would be nice to know if all the high performing private schools had something in common besides the fact they participate in the voucher program.