A Note on The Use of Triads for Paired Comparisons  

Oleh:

Schucker, R. E.

Jenis: Article from Journal - e-Journal
Dalam koleksi: Psychometrika: A Journal of Quantitative Psychology vol. 24 no. 3 (Sep. 1959), page 273-276.
Topik: Cyclic Enumeration of Configurations; Machine Cycling o] Triads
Fulltext: 2403_1012.pdf (212.99KB)

Isi artikel

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, forN 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 whichN is an odd multiple of three.

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