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Despite being a defining issue in the culture war, the political psychology of abortion attitudes remains poorly understood. We address this oversight by reviewing existing literature and integrating new analyses of several large‐scale, cross‐sectional, and longitudinal datasets to identify the demographic and ideological correlates of abortion attitudes. Our review and new analyses indicate that abortion support is increasing modestly over time in both the United States and New Zealand. We also find that a plurality of respondents (43.8%) in the United States are consistently "pro‐choice," whereas 14.8% are consistently "pro‐life," across various elective and traumatic abortion scenarios. We then show that age, religiosity, and conservatism correlate negatively, whereas Openness to Experience correlates positively, with abortion support. New analyses of heterosexual couples further reveal that women's and men's religiosity decrease their romantic partner's abortion support. Noting inconsistent gender differences in attitudes toward abortion, we then discuss the impact of traditional gender‐role attitudes and sexism on abortion attitudes and conclude that, rather than misogyny, benevolent sexism—the belief that women should be cherished and protected—best explains opposition to abortion. Our review thus provides a comprehensive overview of the demographic and ideological variables that underly abortion attitudes and, hence, the broader culture war. [ABSTRACT FROM AUTHOR]

The additive and interactive effects of Social Dominance Orientation (SDO) and Right-Wing Authoritarianism (RWA) were examined using 16 independent samples of New Zealand European participants (N = 2,164). Consistent with Duckitt's (2001) Dual Process Model, SDO and RWA displayed strong additive effects across various domains of intergroup-related attitude, including measures of racism, sexism, homosexual prejudice, and ethnic and religious in group identification. In each of these five domains, meta-analysis indicated that the statistical interaction of SDO and RWA accounted for an average of less than .001% variance in addition to their linear combination. It is concluded that the association between SDO and various discriminatory attitudes and beliefs is only extremely weakly dependent on RWA, and vice-versa, suggesting that these two ideological attitudes are primarily additive, rather than interactive, in nature. [ABSTRACT FROM AUTHOR]