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Testing for Uni-Dimensional Scaling of Stimuli Used in Preference Experiments

Published online by Cambridge University Press:  11 January 2023

I R Inglis*
Affiliation:
Central Science Laboratory, Ministry of Agriculture, Fisheries and Food, Worplesdon, Surrey GU3 3LQ, UK
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Abstract

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Many animal preference experiments involve test stimuli that have been chosen by the experimenter to represent different strengths of a single attribute. It is assumed that the animals also scale the test stimuli along a single dimension. This paper shows how it is possible to use the ‘Unfolding Technique' developed by Coombs (1964) to check the validity of this assumption. A simple experiment is described which used Coombs' technique to verify that three visual test stimuli were ranked by laboratory rats along a single dimension. These stimuli were subsequently used in an experiment to see how different housing conditions changed rats' preferences for visual complexity.

Type
Short Communication
Copyright
© 1994 Universities Federation for Animal Welfare

References

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