000			02161naa a2200181uu 4500
001			9022616580110
003			OSt
005			20190211164818.0
008			090226s2009 xx ||||gr |0|| 0 eng d
100	1		_aBECKWITH, Jon _936424
245	1	0	_aTwin studies of political behavior : _buntenable assumptions?
260			_aNew York, NY : _bCambridge University Press, _cDecember 2008
520	3		_aUsing the “classical twin method,” political scientists John Alford, Carolyn Funk, and John Hibbing conclude that political ideologies are significantly influenced by genetics, an assertion that has garnered considerable media attention. Researchers have long used human twins in attempts to assess the degree of genetic influence on various behavioral traits. Today, this methodology has been largely replaced in favor of contemporary molecular genetic techniques, and thus heritability studies have seen a diminishing role in behavioral genetic research of the twenty-first century. One important reason the twin method has been superseded is that it depends upon several questionable assumptions, the most significant of which is known as the equal environments assumption. Alford, Funk, and Hibbing argue that this crucial assumption, and thus their conclusion, holds up under empirical scrutiny. They point to several studies in support of this assumption. Here, we review the evidence presented and conclude that these attempts to test the equal environments assumption are weak, suffering significant methodological and inherent design flaws. Furthermore, much of the empirical evidence provided by these studies actually argues that, contrary to the interpretation, trait-relevant equal environments assumptions have been violated. We conclude that the equal environments assumption remains untenable, and as such, twin studies are an insufficient method for drawing meaningful conclusions regarding complex human behavior
700	1		_aMORRIS, Corey _936425
773	0	8	_tPerspectives on politics _g6, 4, p. 785-791 _dNew York, NY : Cambridge University Press, December 2008 _xISSN 15375927 _w
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998			_a20090226 _b1658^b _cTiago
999			_aConvertido do Formato PHL _bPHL2MARC21 1.1 _c28403 _d28403
041			_aeng