This article examines the relationship between cognitive processing and mastery. While scholars have called for the integration of sociological and cognitive analyses of mastery, sociological research has focused almost exclusively on mapping its social correlates. As a result, sociologists have relied on untested and underspecified assumptions about cognition to explain the efficacy of mastery. Taking an interdisciplinary approach integrating research on mastery, dual-process models of cognition, and intersectionality, we specify and test the hypothesis that deliberate thinking dispositions are associated with a greater sense of control over one's life chances and assess whether this relationship varies across different intersections of social positions. Regression results from survey data in a diverse student sample (N = 982) suggest a positive correlation between deliberate cognitive style and personal mastery. However, results from a quantitative intersectional analysis demonstrate that this relationship does not hold for East Asian women.