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Use of the Test Scoring Machine and the Graphic Item Counter for Statistical Work

Published online by Cambridge University Press:  01 January 2025

Benjamin S. Bloom  and
Ardie Lubin
Benjamin S. Bloom
Affiliation:
Board of Examinations, The University of Chicago
Ardie Lubin
Affiliation:
Board of Examinations, The University of Chicago
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Abstract

The graphic item-counter is described and its use as a statistical device is explained. Procedures are presented for obtaining Pearson product-moment correlations by means of the graphic item-counter.

Type
Original Paper
Information
Psychometrika , Volume 7 , Issue 4 , December 1942 , pp. 233 - 241
Copyright
Copyright © 1942 The Psychometric Society

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References

* An alternative method for transforming geometric coded values to sums of cross products is given by Kuder, G. F. Use of the International Scoring Machine for the rapid computation of tables of intercorrelations, J. appl. Psychol, 1938, 587-596.