Remarks on The Method of Paired Comparisons: I. The Least Squares Solution Assuming Equal Standard Deviations and Equal Correlations  

Oleh:

Mosteller, Frederick

Jenis: Article from Journal - e-Journal
Dalam koleksi: Psychometrika: A Journal of Quantitative Psychology vol. 16 no. 1 (Mar. 1951), page 3-9.
Topik: Squares Solution; Equal Standard Deviations; Equal Correlations
Fulltext: Remarks on The Method of Paired Comparisons I. The Least Squares Solution Assuming Equal Standard Deviations and Equal Correlations.pdf (265.27KB)

Isi artikel

Thurstone's Case V of the method of paired comparisons assumes equal standard deviations of sensations corresponding to stimuli and zero correlations between pairs of stimuli sensations. It is shown that the assumption of zero correlations can be relaxed to an assumption of equal correlations between pairs with no change in method. Further the usual approach to the method of paired comparisons Case V is shown to lead to a least squares estimate of the stimulus positions on the sensation scale.

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