Sex differences in the emergence of leadership during competitions within and between groups

This experiment investigated potential gender biases in the emergence of leadership in groups. Teams played a public-goods game under conditions of intra- or intergroup competition. We predicted and found a strong preference for female leaders during intragroup competition and male leaders during intergroup competition. Furthermore, during intragroup competition, a female leader was more instrumental than a male leader in raising group investments, but this pattern was reversed during intergroup competition. These findings suggest that particular group threats elicit specific gender-biased leader prototypes. We speculate about the evolutionary and cultural origins of these sex differences in the emergence of leadership.     

Gender Differences in Healthcare Utilization: The Mediating Effect of Utilization Propensity

To evaluate the mediating effect of utilization propensity (UP) on gender differences in healthcare utilization (HCU), a representative sample of the German general population (N = 2,510) was assessed with questionnaires. Gender differences in HCU, UP, and the mediating effect of UP were investigated using regression analyses. UP was significantly associated with HCU. The explanatory power of gender for UP, and of UP for HCU was prevailingly weak. UP had a mediating effect on gender differences in HCU, but the effect was very small. This is partly attributable to common problems in the prediction of behavior by attitudes and the operationalization of UP.