The present study investigates the commonly found age-conservatism relationship by combining insights from studies on the development of personality and motivated social cognition with findings on the relationships between these factors and conservative beliefs. Based on data collected in Belgium (N=2,373) and Poland (N=939), we found the expected linear effect of age on indicators of social-cultural conservatism in Belgium and Poland and the absence of such effects for indicators of economic-hierarchical conservatism. We further demonstrated that these effects of age on indicators of cultural conservatism in both countries were (in part) mediated through the personality factor Openness to Experience and the motivated cognition variable Need for Closure. The consistency of these findings in two countries with a very dissimilar sociopolitical history attests to the importance of the developmental perspective for the study of the relationship between age and conservatism.

The present research investigates in a student (N ¼ 183) and a voter sample (N ¼ 276) whether the relationships between the Five-Factor Model (FFM) personality dimensions and social attitudes (i.e. Right-Wing Authoritarianism [RWA] and Social Dominance Orientation [SDO]) are mediated by social worldviews (i.e. dangerous and jungle worldviews). Two important results were obtained. First, the perception of the world as inherently dangerous and chaotic partially mediated the relationships of the personality dimensions Openness and Neuroticism and the social attitude RWA. Second, the jungle worldview completely mediated the relationships between Agreeableness and SDO, but considerable item overlap between the jungle worldview and SDO was also noted. It was further revealed that acquiescence response set and item overlap had an impact on social worldviews and attitudes, but that their relationships were hardly affected by these biases. The discussion focuses on the status of social worldviews to explain social attitudes.

This study examines the simultaneous effects of need for closure (NFC) and relative cognitive capacity on invested effort and task performance within the integrative analysis framework using behavioral data. Two main results were obtained. First, the authors revealed a significant interaction effect between relative cognitive capacity (manipulated through task difficulty) and NFC (manipulated through time pressure, noise, and fear of invalidity as well as assessed by an individual differences measure) on effort investment. Second, contrary to dispositional NFC, manipulations yielded a "dual effect" because they negatively affected task performance as well as invested effort. The latter result was interpreted as an indication that noise and time pressure manipulations also tax cognitive resources. The two main findings are discussed and the authors go further into the divergences between dispositional and manipulated NFC.

Openness to Experience and Need for Closure (NFC) are dispositional variables related to social-cultural right-wing attitudes. The present study investigated their joint effects. Factor analysis revealed an 'experiential' dimension with high loading openness items, and a 'cognition' dimension with high loadings for most NFC items and about a quarter of the openness item set. The experiential openness items were weakly related to right-wing attitudes, demonstrating little predictive value. Conversely, the cognitive openness and NFC items were powerful predictors of right-wing attitudes, and also played an important role in integrative models, both as a predictor of authoritarianismbased racism and as a mediator of age related increments in right-wing attitudes. It is concluded that right-wing attitudes should be primarily understood in terms of (motivated) cognition, and to a smaller extent in terms of experiential openness. The distinction between 'experiential' and 'cognitive' openness is critically assessed, and it is asserted that because cognition is a multifaceted construct openness contains more than one cognitive dimension.

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