Affiliations: [a] Department of Statistics, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand | [b] Department of Mathematics, Faculty of Science, Mahidol University, Bangkok, Thailand
Corresponding author: Montip Tiensuwan, Department of Mathematics, Faculty of Science, Mahidol University, Bangkok, Thailand. E-mail: [email protected].
Abstract: In this paper we discuss methods of testing agreement when two observers or raters employ measurements on a continuous scale under a bivariate exponential distribution. The Downton's  bivariate exponential distribution model is used to derive the test procedures of intra-rater agreement. The operating characteristics of the proposed testing methods are evaluated using a simulation study. Some results of the simulation study based on a large sample size are presented.
Keywords: Bivariate exponential, concordance correlation coefficient, continuous scale, likelihood ratio test, mean squared difference