A Variance Decomposition and Assessment of the Effect of Educational Innovations in Introductory Economics Courses

20 Pages Posted: 20 Jan 2005

See all articles by Barry K. Ma

Barry K. Ma

City University of New York, Baruch College - Zicklin School of Business - Department of Economics and Finance

Jeffrey Weiss

City University of New York, Baruch College - Zicklin School of Business - Department of Economics and Finance

Date Written: December 2004

Abstract

The effects of educational innovations are estimated by two different approaches. The first is the familiar regression framework. In the second approach, the grade of a given student is decomposed into the grade due to ability and the grade due to random guessing. For a given ability distribution, we show that an educational innovation would increase the mean and decrease the variance of the observed students' grades.

JEL Classification: A22

Suggested Citation

Ma, Barry K. and Weiss, Jeffrey, A Variance Decomposition and Assessment of the Effect of Educational Innovations in Introductory Economics Courses (December 2004). Available at SSRN: https://ssrn.com/abstract=651101 or http://dx.doi.org/10.2139/ssrn.651101

Barry K. Ma (Contact Author)

City University of New York, Baruch College - Zicklin School of Business - Department of Economics and Finance ( email )

17 Lexington Avenue
New York, NY 10010
United States
(646)312-3481 (Phone)
(646)312-3451 (Fax)

Jeffrey Weiss

City University of New York, Baruch College - Zicklin School of Business - Department of Economics and Finance ( email )

17 Lexington Avenue
New York, NY 10010
United States

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