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An Estimation of True Scores in the Case of Items Scored on a Continuous Scale

Published online by Cambridge University Press:  01 January 2025

A. B. L. Srivastava  and
Harold Webster
A. B. L. Srivastava
Affiliation:
Department of Psychological Foundations, National Institute of Education, Delhi, India
Harold Webster
Affiliation:
Columbia University Teachers College Team, Delhi, India
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Abstract

For the tests in which the score on an item is not restricted to 0 and 1, but is any number on a continuous scale, a procedure for estimating an examinee's true score is given. For the case of 0, 1 item scoring this problem was considered by Lord [1959]. Following Lord, the least squares estimation procedure is used and the regression coefficient is obtained, which is compared with the generalized KR(20) and KR(21) formulas. Also, results are discussed using analysis of variance models.

Type
Original Paper
Information
Psychometrika , Volume 32 , Issue 3 , September 1967 , pp. 327 - 338
Copyright
Copyright © 1967 The Psychometric Society

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Footnotes

*

Now at Brooklyn College of the City University of New York.

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