Student use of the PeerWise system

PeerWise is a web-based system that supports the creation of student-generated test banks of multiple choice questions. Students contribute question stems and answers, provide explanations, answer questions contributed by other students, rate questions for difficulty and quality, and participate in on-line discussions of all these activities. In 2007, the system was used in four computing classes that varied in level, instructors, and student reward. We present results that show common patterns of response from students, and outline some initial investigations into the impact of the system on student performance. Our main findings are: external motivators are needed only for question generation; exam performance is correlated with participation in on-line discussions; and, despite student enthusiasm, drill-and-practice use does not contribute to exam success.