A group study method proved helpful in improving senior-level students' performance on unit tests through collaborative learning. Students of a History of Textiles course voluntarily attended study sessions to review course content and prepare for unit tests. The students who attended the group reviews scored better on tests than those who did not. The effect sizes based on t-test of groups suggest medium to high impact of collaborative learning for the five unit tests. Findings have implications for courses where review sessions can supplement classroom teaching and learning. Benefits of collaborative learning are relevant for all areas of family and consumer sciences. (Contains 1 table.)