Wired News: No Wrong Answer: Click It

From No Wrong Answer: Click It:

Professor Ross Cheit put it to the students in his Ethics and Public Policy class at Brown University: Are you morally obliged to report cheating if you know about it? The room began to hum, but no one so much as raised a hand.

Still, within 90 seconds, Cheit had roughly 150 student responses displayed on an overhead screen, plotted as a multicolored bar graph — 64 percent said yes, 35 percent, no.

Several times each class, Cheit's students answer his questions using handheld wireless devices that resemble television remote controls. The devices, which the students call "clickers," are being used on hundreds of college campuses and are even finding their way into grade schools.

But can the professor phone a friend? And does he have a limited number of lifelines?