This study used a quasi-experimental design to compare the effects of an intercultural development program on students' Cultural Intelligence (CQ) compared with students in a summer research program who did not receive the intervention. Social Learning Theory guided a 9-week student-centered cultural learning course focused on attention, retention, and reproduction of each CQ domain. After the course, students had opportunities to practice their CQ abilities while studying abroad. Pre-assessment CQ determined an individualized learning plan. Reflective journaling and cultural mentoring were used to maximize student CQ growth. Using multi-level modeling, we observed a statistically significant increase in three CQ domains compared to the comparison control group: cognitive (p<0.01), metacognitive (p<0.01), and behavioral CQ (p<0.01). Motivation CQ scores did not significantly improve (p=0.08). Our results suggest that a university intercultural development program that intentionally combines a cultural learning course with a study abroad experience may improve students' CQ.