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A Note on the use of Triads for Paired Comparisons

Published online by Cambridge University Press:  01 January 2025

R. E. Schucker
R. E. Schucker*
Affiliation:
Purdue University
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Abstract

When scaling a large number of stimuli from comparative judgments, considerable savings in time and labor may be realized if stimuli are presented in triad form rather than in pairs. If, for N stimuli, the proper configuration of triads can be assembled so that all possible pairs appear once, the paired judgment matrix may be reproduced with one-third fewer judgments and two-thirds fewer presentations than would be required with complete pairing. A simple procedure is described for enumerating triad configurations for which N is an odd multiple of three.

Type
Original Paper
Information
Psychometrika , Volume 24 , Issue 3 , September 1959 , pp. 273 - 276
Copyright
Copyright © 1959 The Psychometric Society

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References

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