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Note on the Computation of Product-Moment Correlation Coefficients

Published online by Cambridge University Press:  01 January 2025

Dorothy C. Adkins
Dorothy C. Adkins*
Affiliation:
The University of North Carolina
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Abstract

This paper describes a systematic plan for computing all of the product-moment correlation coefficients among a number of variables that has been taught by Professor Toops for many years. It offers several advantages over a scheme presented by Kossack in a recent issue of this journal.

Type
Original Paper
Information
Psychometrika , Volume 14 , Issue 1 , March 1949 , pp. 69 - 73
Copyright
Copyright © 1949 The Psychometric Society

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Footnotes

*

Kossack, Carl F. On the computation of zero-order correlation coefficients. Psychometrika, 1948, 13, 91-93.

†

For an early reference related to this plan, see Toops, Herbert A. Computing intercorrelations of tests on the adding machine. J. appl. Psychol., 1922, 6, 172-184. See also Toops, Herbert A. Some possibilities of statistical analysis rendered possible by recent applications of punched card and sorting equipment. Ohio College Association Bulletin No. 131, 1943, pp. 2508-2514.

*

Toops, Herbert A. Statistical checks on the accuracy of intercorrelation computations. Educ. res. Bull., 1927, 6, 385-391.