000			01536naa a2200181uu 4500
001			5082614453017
003			OSt
005			20190211160054.0
008			050826s2005 xx ||||gr |0|| 0 eng d
100	1		_aSMITH, Herbert L _921565
245	1	0	_aIntroducing new contraceptives in rural china : _ba field experiment
260			_aThousand Oaks : _bSAGE, _cMay 2005
520	3		_aThe project on INtroducing New Contraceptives in Rural China (INCR) was carried out between 1991 an d1996 in four counties of rural north China. The experimental componet involved the random assignment of a multipronged treatment to four townships in each county. Two townships per county served as controls. The scale of the project made it nearly impossible to maintain the integrity of the experimental model that was at the core of the project's design. In spite of the massive numbers of people in the catchment areas of the study (>100,000), the experimental design was of low power, with but eight controls on sixteen treatments; when random assignment is at higher levels of analysis, masses of individual observations only create greater precision in the estimation of higher-order observations. However, the study would not have been made, were it not conceived as an experiment.
773	0	8	_tThe Annals of The American Academy of Political and Social Science _g599, p. 246-271 _dThousand Oaks : SAGE, May 2005 _xISSN 00027162 _w
942			_cS
998			_a20050826 _b1445^b _cAnaluiza
998			_a20100803 _b1036^b _cCarolina
999			_aConvertido do Formato PHL _bPHL2MARC21 1.1 _c13427 _d13427
041			_aeng