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An Empirical Study of Item-Test Regression

Published online by Cambridge University Press:  01 January 2025

Frederic M. Lord*
Affiliation:
Educational Testing Service

Abstract

Certain questions about the shape of item-test regressions are answered on the basis of data obtained from 103,275 examinees. Ten of the regressions obtained are shown in illustrative plots.

Type
Original Paper
Copyright
Copyright © 1965 Psychometric Society

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Footnotes

*

This work was supported in part by the College Entrance Examination Board.

References

Lord, F. M. A note on the normal ogive or logistic curve in item analysis. Psychometrika, 1965, 30, 371372.CrossRefGoogle ScholarPubMed