Intercultural competence--the ability to successfully interact and communicate sensitively with members of other cultural groups--is an essential skill in multicultural societies and an increasingly globalized world. A quasi-experimental study revealed that completing a cross-cultural international psychology course increased college students' perceived intercultural competence substantially, relative to students in a control (research methods) course. The curriculum included an extensive 10-week Cultural Immersion Project, conducted on campus and in the local community, and weekly experientially based group projects. The course may be especially effective for college students with less prior intercultural experience.