ERIC Number: EJ822824
Record Type: Journal
Publication Date: 2008-Dec
Abstractor: As Provided
Reference Count: 47
On Association Coefficients for 2x2 Tables and Properties that Do Not Depend on the Marginal Distributions
Warrens, Matthijs J.
Psychometrika, v73 n4 p777-789 Dec 2008
We discuss properties that association coefficients may have in general, e.g., zero value under statistical independence, and we examine coefficients for 2x2 tables with respect to these properties. Furthermore, we study a family of coefficients that are linear transformations of the observed proportion of agreement given the marginal probabilities. This family includes the phi coefficient and Cohen's kappa. The main result is that the linear transformations that set the value under independence at zero and the maximum value at unity, transform all coefficients in this family into the same underlying coefficient. This coefficient happens to be Loevinger's "H."
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A