000			00729nam a2200193 a 4500
001			A30009 13303
003			dti
005			20170506185118.0
008			s1980 000 0 eng
020			_a0673162605
100	1		_aLangbein, Laura Irwin.
245	1	0	_aDiscovering whether programs work : _ba guide to statistical methods for program evaluation / _cby Laura Irwin Langbein.
260			_aGlenview, Ill. : _bScott, Foresman and Company, _c1980.
300			_aviii, 184 p.
440		0	_aThe Scott, Foresman Public Policy Analysis and Management Series.
500			_aIncludes bibliography and index.
650		0	_aSocial sciences _xStatistical methods.
650		0	_aEvaluation research _x(Social action programs).
999			_c374386 _d374386