The study reviewed in this report examined the effectiveness of the "Milwaukee Parental Choice Program" ("MPCP"), which provides vouchers for low-income students to attend private schools. The study analyzed data on about 600 students who were given "MPCP" vouchers in the 2006-07 school year. The authors created a comparison group of similar size by matching the "MPCP" students to students who attended Milwaukee Public Schools. The study estimated the effect of the voucher program by comparing "MPCP" students' standardized test scores in 2010--four years after they were given a voucher--with those of comparison group students. The study found that the reading test scores of "MPCP" students in 2010 were 0.15 standard deviations higher than they were for the matched comparison sample, a statistically significant difference. There was no significant difference in math test scores in 2010. The research described in this report meets What Works Clearinghouse (WWC) evidence standards with reservations. Appended are: (1) Study details; (2) Outcome measures for each domain; and (3) Study findings for each domain. A glossary of terms is included. (Contains 2 endnotes.) [The following study is the focus of this "Review": "MPCP Longitudinal Educational Growth Study: Fifth Year Report. SCDP Milwaukee Evaluation Report #29" (ED530071). For the "WWC Quick Review" of this report, "What Works Clearinghouse Quick Review: "Milwaukee Parental Choice Program Longitudinal Educational Growth Study Fifth Year Report," see ED530840.]