On approximate confidence intervals for measures of concordance |
| |
Authors: | Albert D Palachek William R Schucany |
| |
Institution: | (1) University of Cincinnati, USA;(2) Department of Statistics, Southern Methodist University, 75275 Dallas, TX |
| |
Abstract: | The use ofU-statistics based on rank correlation coefficients in estimating the strength of concordance among a group of rankers is examined for cases where the null hypothesis of random rankings is not tenable. The studentizedU-statistics is asymptotically distribution-free, and the Student-t approximation is used for small and moderate sized samples. An approximate confidence interval is constructed for the strength of concordance. Monte Carlo results indicate that the Student-t approximation can be improved by estimating the degrees of freedom.Research partially supported on ONR Contract N00014-82-K-0207. |
| |
Keywords: | Concordance confidence intervals jackknife rank correlation U-Statistics |
本文献已被 SpringerLink 等数据库收录! |