Kappa Coefficient Calculation Using Multiple Ratings Per Subject: A Special Communication
Open Access
- 1 November 1989
- journal article
- Published by Oxford University Press (OUP) in PTJ: Physical Therapy & Rehabilitation Journal
- Vol. 69 (11) , 970-974
- https://doi.org/10.1093/ptj/69.11.970
Abstract
The purpose of this special communication is to describe the application of the Kappa coefficient for the estimation of interobserver agreement. Kappa is a preferred statistic for the estimation of the accuracy of nominal and ordinal data in clinical research by physical therapists. A brief introduction to the properties of the Kappa coefficient is given, and a special case of Kappa for multiple ratings per subject is explained. A FORTRAN program, written specifically for the multiple-ratings situation, is described.Keywords
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