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A Tabular Method of Obtaining Tetrachoric r with Median-Cut Variables

Published online by Cambridge University Press:  01 January 2025

George Schlager Welsh
George Schlager Welsh*
Affiliation:
The University of North Carolina
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Abstract

A method is presented that enables the immediate determination of tetrachoric r from a table if the proportion in the plus-plus cell for median-cut variables is known.

Type
Original Paper
Information
Psychometrika , Volume 20 , Issue 1 , March 1955 , pp. 83 - 85
Copyright
Copyright © 1955 The Psychometric Society

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References

Chesire, L., Saffir, M. and Thurstone, L. L. Computing diagrams for the tetrachoric correlation coefficient, Chicago: Univ. Chicago Bookstore, 1933Google Scholar