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Measuring Nominal Scale Agreement Between a Judge and a Known Standard

Published online by Cambridge University Press:  01 January 2025

D. D. Wackerly ,
J. T. McClave  and
P. V. Rao
D. D. Wackerly*
Affiliation:
University of Florida
J. T. McClave
Affiliation:
University of Florida
P. V. Rao
Affiliation:
University of Florida
*
Requests for reprints should be sent to D. D. Wackerly, Department of Statistics, Nuclear Sciences Center, University of Florida, Gainesville, Florida 32611.
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Abstract

Two designs for comparing a judge's ratings with a known standard are presented and compared. Design A pertains to the situation where the judge is asked to categorize each of N subjects into one of r (known) classes with no knowledge of the actual number in each class. Design B is employed when the judge is given the actual number in each class and is asked to categorize the individuals subject to these constraints. The probability distribution of the total number of correct choices is developed in each case. A power comparison of the two procedures is undertaken.

Keywords

categorical datanominal dataFisher’s tea-tasting experimentFleiss’ Kappamultinomial distributionpower comparisonscomputer algorithm
Type
Original Paper
Information
Psychometrika , Volume 43 , Issue 2 , June 1978 , pp. 213 - 223
Copyright
Copyright © 1978 The Psychometric Society

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Footnotes

The authors would like to thank G. E. Blume for her permission to use the data and description which appear in the introduction. Computer funding was provided by the Northeast Regional Data Center at the University of Florida. Our gratitude is also extended to the referees who made helpful suggestions regarding exposition and relevant references.

References

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