Appendix Figure 4.

Quantile treatment effect estimates of the impact of a voucher offer on reading National Percentile Rankings for the third year after random assignment

Notes: Figure shows QTE for the effect of being offered a voucher for private school on reading National Percentile Ranking scores from the Iowa Test of Basic Skills in the spring after the third year. Estimates are weighted using inverse propensity score weights. Weights are 1/p̂ for treatment observations and 1/(1 − p̂) for control observations, where p̂ is generated from a logistic regression of treatment status on baseline demographics, sample design variables, and baseline test scores. 95% CIs are obtained by bootstrapping families with replacement. Data from the New York City School Choice Scholarships Program evaluation conducted by Mathematica Policy Research.