Although constructivist career theory is routinely discussed in the literature, links between theory and practice in education are lacking. The current study focused on the potential of a constructivist curriculum to empower at-risk culturally diverse college students by increasing career self-efficacy and reducing dysfunctional career thoughts. Using a pre/post-test design, 75 under-prepared undergraduates who were enrolled in six sections of a constructivist career course at a large Midwestern university completed the Career Decision Self-Efficacy Scale Short-Form (CDSE-SF) and the Career Thoughts Inventory (CTI). The sample was 45% students of color and 55% White. Multivariate analysis of variance with follow-up univariate analyses revealed significantly higher CDSE-SF scores and significantly lower CTI scores. These results suggest that a constructivist career development course may be a viable educational vehicle for empowering at-risk culturally diverse college students by increasing career self-efficacy and decreasing self-defeating thoughts, particularly thoughts associated with decision-making confusion and commitment anxiety. (Contains 2 tables.)