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Some Statistical Operations on the Counting Sorter

Published online by Cambridge University Press:  01 January 2025

Philip H. DuBois
Philip H. DuBois*
Affiliation:
University of New Mexico
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Extract

The IBM card counting sorter may be readily used for a number of statistical operations independent of the tabulating unit. In this article, use of the counting sorter in computing the mean and standard deviation with 2-digit variables and the coefficient of correlation with scores coded in a single column will be described. Both processes involve machine work which is essentially the same. A method for finding the correlation between 2-digit variables will also be given.

Information

Type
Original Paper
Information
Psychometrika , Volume 6 , Issue 6 , December 1941 , pp. 383 - 390
Copyright
Copyright © 1941 The Psychometric Society

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References

* For an algebraic proof of the computational principle involved, see Du Bois, Philip H. A statistical time-saver for means and sigmas. J. Cons. Psychol., 1939, 3, 80-82.