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Nomograph for Computing Bi-Serial Correlations

Published online by Cambridge University Press:  01 January 2025

Jack W. Dunlap
Jack W. Dunlap*
Affiliation:
Fordham University
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Abstract

The widespread use of bi-serial r in item analysis makes a quick and accurate method of evaluating the formula desirable. Such a method is provided by homographs. Dunlap and Kurtz in their Nomograph No. 47 give a method of solving the better known statement of the formula, namely (1)

Type
Original Paper
Information
Psychometrika , Volume 1 , Issue 2 , June 1936 , pp. 59 - 60
Copyright
Copyright © 1936 The Psychometric Society

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Footnotes

*

Dunlap, Jack W. and Kurtz, Albert K., Handbook of Statistical Nomographs, Tables, and Formulas. World Book Co. 1932, Yonkers, New York.