000			01407naa a2200181uu 4500
001			7071
003			OSt
005			20190211154213.0
008			020919s2005 xx ||||gr |0|| 0 eng d
245	1	0	_aSchool vouchers and academic performance : _bresults from three randomized field trials
260			_c2002
520	3		_aThis article examines the effects of school vouchers on student test scores in New York, Dayton, Ohio, and Washington, DC. The evaluations in all three cities are designed as randomized field trials. The findings, therefore, are not confounded by the self-selection problems that pervade most observational data. After 2 years, African Americans who switched from public to private school gained, relative to their public-school peers, an average of 6.3 National Percentile Ranking points in the three cities on the Iowa Test of Basic Skills. The gains by city were 4.2 points in NEW Yorkk, 6.5 points in Dayton, and 9.2 points in Washington. Effects for African Americans are statistically significant in all three cities. In no city are satistically significant effects obeserved for other ethnic groups, after either 1 or 2 years
773	0	8	_tJournal of Policy Analysis and Management _g21, 2, p. 191-217 _d, 2002 _w
942			_cS
998			_a20020919 _bLucima _cLucimara
998			_a20060510 _b1701^b _cQuiteria
999			_aConvertido do Formato PHL _bPHL2MARC21 1.1 _c7227 _d7227
700			_a
041			_aeng