Two studies were conducted to test the link between numerical distinctiveness, stereotype threat and mathematical performance among women. In the first study, stereotype threat was measured with a stereotype activation task. Women in a solo, non-solo or control condition completed word fragments and a mathematical activity. Solo women, rather than their non-solo counterparts showed mathematical performance deficits. Evidence did not support the mediating role of stereotype activation. In the second study, stereotype anxiety was assessed. According to analyses, solo women reported greater stereotype-related anxiety than non-solo women. A link between stereotype anxiety and mathematical performance deficits was also uncovered. Finally, mathematical underperformance was associated with greater interest in feminine activities. Strategies to buffer the effects of stereotype threat are discussed.The number of women pursuing post-secondary education in Canada has risen sharply over the last decade (Statistics Canada, 2001). Currently, women form the majority of under-

This study proposed and tested a model based on stereotype threat theory. The hypothesis is that women who are exposed to a low percentage of women in a science program are more likely to endorse the gender stereotype that science is a male domain, which will in turn undermine their autonomous academic motivation. A total of 167 women university students enrolled in science programs participated in an 18-month longitudinal study. Results partially support our model. Although the low percentage of females in science programs was related to endorsement of the gender stereotype, there was no effect of prior stereotype endorsement on subsequent autonomous academic motivation.

The aim of this study was to understand the processes explaining the effects of private performance feedback (success vs. failure) on state self-esteem from the stance of sociometer theory and self-determination theory. We investigated whether or not the effect of private performance feedback on state self-esteem was mediated by perceived inclusion as a function of participants' level of task-related identified regulation (i.e., importance of the activity for oneself). Ninety participants were randomly assigned to one of the following three conditions: failure, success, or control. Our regression analyses based on both original and bootstrap samples indicate that perceived inclusion does not mediate the effect of feedback on state self-esteem for individuals high in task-related identified regulation. Such an effect only operates for individuals low in task-related identified regulation. In sum, our results show that the perceived inclusion process proposed by sociometer theory applies more when individuals find that the activity is less important for them (i.e., identified regulation).

L’objectif principal de cette étude est de vérifier empiriquement un modèle médiationnel de la procrastination académique. Le modèle postule que les illusions positives et la perception illusoire du temps sont corrélées positivement à la motivation. À son tour, la motivation est liée négativement à la procrastination académique. Les résultats de l’analyse de régression soutiennent le modèle proposé. La discussion aborde le rôle de la motivation, des illusions positives et de la perception illusoire du temps dans la compréhension du phénomène de la procrastination académique.