Louisiana held a random lottery to award school vouchers for economically disadvantaged students to attend private schools. This study examines the academic difference between those to won the lottery and attended public schools, and those who lost the lottery. Findings show that attending private schools increased the probability of receiving a failing math score by 50%, while lowering average math scores by .4 standard deviations. Significant negative correlations were also found with reading, science, and social studies scores.
These results indicate voucher programs may not be as effective as previously thought in terms of improving education. Further evidence may be needed, but it would appear a more cost-effective mechanisms is needed to advance education standards.