# Coefficients of Determination in Logistic Regression Models—A New Proposal: The Coefficient of Discrimination

@article{Tjur2009CoefficientsOD, title={Coefficients of Determination in Logistic Regression Models—A New Proposal: The Coefficient of Discrimination}, author={Tue Tjur}, journal={The American Statistician}, year={2009}, volume={63}, pages={366 - 372} }

Many analogues to the coefficient of determination R2 in ordinary regression models have been proposed in the context of logistic regression. Our starting point is a study of three definitions related to quadratic measures of variation. We discuss the properties of these statistics, and show that the family can be extended in a natural way by a fourth statistic with an even simpler interpretation, namely the difference between the averages of fitted values for successes and failures… Expand

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