How Much Do Liberal and Conservative Identifiers Differ in the United States?*

Recent scholarship has reported that identification as a liberal or conservative shapes lifestyle orientations and behaviors. Liberal/conservative differences with respect to such arenas as family and religion go beyond ideological identification research's traditional focus on policy attitudes and political processes. But are differences on non-political issues as large as those relating to political ones? This question has yet to be addressed, and it is critical to putting in firmer perspective the degree to which liberal and conservative identifiers differ in the United States. We take up investigation through analysis of 106 items from the General Social Survey 2006 panel. We compare ideological identification's influence with respect to political versus non-political orientations and behaviors. Application of Morgan and Winship's model of causal inference builds from past studies' cross-sectional analysis. Results extend ideological identification scholarship, while cautioning against wide-ranging claims advanced by several public commentators.