This experiment examines the causal effect an electronic classroom response system (ECRS) has on students. Previous studies using an ECRS in the classroom indicate improved performance; however, many have confounds typical of classroom studies. To complement these studies, we conducted a laboratory study to minimize these confounds and concentrate…

Compares results of giving undergraduate students actual instructor feedback, computer-simulated instructor feedback, or no feedback. There were advantages to giving actual instructor-supplied feedback for exam performance, in-class responsiveness, and attitudes toward the instructor and other students. (JMV)