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Estimation of the Correlation Coefficient in Contingency Tables with Possibly Nonmetrical Characters

Published online by Cambridge University Press:  01 January 2025

H. O. Lancaster  and
M. A. Hamdan
H. O. Lancaster
Affiliation:
University of Sydney
M. A. Hamdan
Affiliation:
University of Sydney
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Abstract

A method of estimating the product moment correlation from the polychoric series is developed. This method is shown to be a generalization of the method which uses the tetrachoric series to obtain the tetrachoric correlation. Although this new method involves more computational labor, it is shown to be superior to older methods for data grouped into a small number of classes.

Type
Original Paper
Information
Psychometrika , Volume 29 , Issue 4 , December 1964 , pp. 383 - 391
Copyright
Copyright © 1964 Psychometric Society

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