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The L-Method

Published online by Cambridge University Press:  01 January 2025

Herbert A. Toops
Herbert A. Toops*
Affiliation:
Ohio State University
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Abstract

It is shown that the L-method is basic to test-building and to all combining of scores where the several sub-parts of a composite are weighted according to their respective standard deviations, i.e., with “equal gross score weights” or by “adding the several sub-scores.” With chiefly a listing adding machine, a few celluloid strips, and a master matrix table of L's, one may, in a fraction of the time and with equally good or even better practical results, easily duplicate, with test-building material most of the feats obtainable by multiple regression equations.

Type
Original Paper
Information
Psychometrika , Volume 6 , Issue 4 , August 1941 , pp. 249 - 266
Copyright
Copyright © 1941 The Psychometric Society

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References

Toops, Herbert A. and Royer, Elmer B. Predicting soldiers school marks: A problem in selection of tests. Ohio College Association Bulletin No. 80, 975–1002.Google Scholar
Toops, Herbert A. A self-checking technique for shortening a test. Ohio College Association Bulletin No. 92, 1934, 2027–2040.Google Scholar
Hartson, L. D. The application of the L-Method of item analysis to the selection of the “best” items of the Oberlin Paragraph Reconstruction Test. Ohio College Association Bulletin No. 95, 2069–2106.Google Scholar