Student response system (SRS) technology is one of many tools available to help instructors create a rich and productive learning environment. David J. Radosevich, Roger Salomon, Deirdre M. Radosevich, and Patricia Kahn describe a study designed to measure the effect of an SRS on student interest and retention. Two sections of an undergraduate management class participated in this study. Section 1 served as a control group by participating in a typical class without SRS; section 2 used SRS throughout the semester to facilitate active learning. Results indicate that although the classes were comparable at the onset of the semester, those students who used the SRS as an integral part of the classroom reported greater interest in the class and higher expectations of success, performed better on a midterm exam, and more importantly, performed better on a knowledge-retention test administered at the end of the semester. Radosevich, Salomon, Radosevich, and Kahn argue that SRS technology can have beneficial outcomes for student performance and knowledge retention. (Contains 2 exhibits, 6 figures and 3 tables.)