Richard Zeckhauser Photo

Richard Zeckhauser

Appointment
Frank Plumpton Ramsey Professor of Political Economy
Office Address
79 John F. Kennedy St. Littauer Bldg 312
617-495-1174
Levy, Dan, Joshua Yardley, and Richard Zeckhauser. "Getting an Honest Answer: Clickers in the Classroom." Journal of the Scholarship of Teaching and Learning 17.4 (October 2017): 104-125.

Abstract

Asking students to raise their hands is a time honored feedback mechanism in education. Hand raising allows the teacher to assess to what extent a concept has been understood, or to see where the class stands on a particular issue, and then to proceed with the lesson accordingly. For many types of questions, as the evidence here demonstrates, the tally from a public show of hands misrepresents the true knowledge or preferences of the class. The biases are predictable and systematic. Specifically, students raising their hands tend to herd and vote with the majority answer. Beyond impeding the teacher’s ability to assess her class, such herding threatens to diminish learning by limiting the level to which a student engages with the questions posed by the teacher.