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A Factorial Analysis of Olfaction

Published online by Cambridge University Press:  01 January 2025

E. H. Hsü
E. H. Hsü*
Affiliation:
The University of Chicago
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Abstract

Twenty-one reagents were rated on a pleasantness scale by 182 subjects. The tetrachoric correlation coefficients were determined for the variables. The correlation matrix thus obtained was subjected to a Thurstone analysis which gave rise to a 6-dimensional structure. Two of these were not clear-cut, and the last one appeared to be a residual factor. One factor, the benzene-ketone, revealed the chemical property of unsaturation and the physiological quality of possible trigeminal stimulation. The other two factors were marked by the presence of oxygen and nitrogen, respectively, and were tentatively labelled as a plant factor and an animal factor accordingly. The intercorrelations of the primaries are high.

Type
Original Paper
Information
Psychometrika , Volume 11 , Issue 1 , March 1946 , pp. 31 - 42
Copyright
Copyright © 1946 The Psychometric Society

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Footnotes

*

The author wishes to express his gratitude to Professor L. L. Thurstone for his kindness in providing facilities which made this study possible and for his guidance on the factorial problem; to Doctor T. G. Andrews for his many invaluable assistances and technical advice on the experimental aspect of this problem; to Miss Florence Brown for her editorial assistance; and to Mrs. Virginia Brown for her generous assistance on the computational procedures.

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