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Note on Computation of Bi-Serial Correlations in Item Evaluation

Published online by Cambridge University Press:  01 January 2025

Jack W. Dunlap
Jack W. Dunlap*
Affiliation:
Fordham University, New York
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Abstract

By the use of an algebraic variant of the ordinary formula for bi-serial correlation, tables, and graphic devices, a time-saving systematic procedure for the computation of bi-serial correlation co-efficients is outlined for application to the evaluation of items of a test. A table of for arguments of p=.000 to p=.999 is given.

Type
Original Paper
Information
Psychometrika , Volume 1 , Issue 2 , June 1936 , pp. 51 - 58
Copyright
Copyright © 1936 The Psychometric Society

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