Education Working Paper  No. 10 SCDP-06-01 January 2006 An Evaluation of the Effect of D.C.'s Voucher Program on Public School Achievement and Racial Integration After One Year Endnotes National Center for Education Statistics, Digest of Education Statistics 2004, Table 165. National Assessment of Educational Progress, NAEP Data Tool, http://nces.ed.gov/nationsreportcard. Data compiled from the Build a Table option made available by the National Center for Education Statistics, Core of Common Data. Title III—DC Choice Incentive Act of 2003, Sec. 302 (6). Text available online at http://www.schoolchoiceinfo.org/data/facts/DC_Choice.pdf. http://silicon.k12.dc.us/apds/APDSSummaryReports.asp. National Center for Education Statistics, Core of Common Data. For this study, the authors utilized the Build a Table option of the Core of Common Data (http://nces.ed.gov/ccd/bat). “School Directory, D.C. Opportunity Scholarship Program, 2004–05 School Year,” Washington Scholarship Program, June 2005. The software used for this study was Street Atlas USA, 2004, from Delorme. There were a total of 170 public schools in the dataset downloaded from the Core of Common Data, but we only have information on voucher competition for 151 schools. The reason is that 14 were listed as “ungraded,” three schools served only pre-K and kindergarten, and we were unable to match test scores for two of the schools using data from the D.C. Department of Education website. National Center for Education Statistics, Core of Common Data. Ibid. “School Directory, D.C. Opportunity Scholarship Program, 2004–05 School Year,” Washington Scholarship Program, June 2005. For the purposes of this paper, “white” refers to non-Hispanic whites. United States Census, American Fact Finder.