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A law of comparative judgment.

Thurstone, L. L.·1927·Psychological Review

Abstract

This chapter describes a new psychophysical law which may be called the law of comparative judgment and to show some of its special applications in the measurement of psychological values. The law of comparative judgment is applicable not only to the comparison of physical stimulus intensities but also to qualitative comparative judgments such as those of excellence of specimens in an educational scale. The scale difference between the discriminal processes of two specimens which are involved in the same judgment will be called the discriminal difference on that occasion. The law of comparative judgment is basic for all experimental work on Weber's law, Fechner's law, and for all educational and psychological scales in which comparative judgments are involved. The formulation of the law of comparative judgment involves the use of a new psychophysical concept, namely, the discriminal dispersion.

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Metadata

Authors
Thurstone, L. L.
Venue
Psychological Review
Published
1927-07
Volume
34
Issue
4
Pages
273-286
ISSN
  • 0033-295X (ISSN-L)
  • 1939-1471
OpenAlex
W2033442452
Cited by
5,210
References
0
FWCI
1.29
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: A law of comparative judgment. https://app.cochat.ai/papers/10.1037/h0070288
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Thurstone, L. L. (1927). A law of comparative judgment. Psychological Review. https://doi.org/10.1037/h0070288

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.