000			01626naa a2200181uu 4500
001			7010211130721
003			OSt
005			20190211161944.0
008			070102s2007 xx ||||gr |0|| 0 eng d
100	1		_aMAHONEY, James _929528
245	1	0	_aThe Possibility Principle : _bChoosing Negative Cases in Comparative Research
260			_aNew York, NY : _bCambridge University Press, _cNovember 2004
520	3		_aA central challenge in qualitative research is selecting the “negative” cases (e.g., nonrevolutions, nonwars) to be included in analyses that seek to explain positive outcomes of interest (e.g., revolutions, wars). Although it is widely recognized that the selection of negative cases is consequential for theory testing, methodologists have yet to formulate specific rules to inform this selection process. In this paper, we propose a principle—the Possibility Principle—that provides explicit, rigorous, and theoretically informed guidelines for choosing a set of negative cases. The Possibility Principle advises researchers to select only negative cases where the outcome of interest is possible. Our discussion elaborates this principle and its implications for current debates about case selection and strategies of theory testing. Major points are illustrated with substantive examples from studies of revolution, economic growth, welfare states, and war.
700	1		_aGOERTZ, Gary _929529
773	0	8	_tAmerican Political Science Review _g98, 4, p. 653-669 _dNew York, NY : Cambridge University Press, November 2004 _xISSN 0003-0554 _w
942			_cS
998			_a20070102 _b1113^b _cNatália
999			_aConvertido do Formato PHL _bPHL2MARC21 1.1 _c21070 _d21070
041			_aeng