Challenging misconceptions about the coefficient of determination (R^2) with a dynamic Geogebra applet

Main Article Content

Michael Singer Meagher
Michael Todd Edwards
Asli Özgün-Koca


The authors present an applet, R2 Explorer, that can be used to explore how the value of R2 is related to data points and to challenge the misconception that R2 measures “percentage of fit” of a regression line.

Article Details