Measuring agreement between two statistics with applications to age standardization

Michael P. Fay and Ji‐Hyun Lee

Journal of the Royal Statistical Society Series A, 2006, vol. 169, issue 1, 81-96

Abstract: Summary. We detail a general method for measuring agreement between two statistics. An application is two ratios of directly standardized rates which differ only by the choice of the standard. If the statistics have a high value for the coefficient of agreement then the expected squared difference between the statistics is small relative to the variance of the average of the two statistics, and inferences vary little by changing statistics. The estimation of a coefficient of agreement between two statistics is not straightforward because there is only one pair of observed values, each statistic calculated from the data. We introduce estimators of the coefficient of agreement for two statistics and discuss their use, especially as applied to functions of standardized rates.

Date: 2006
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https://doi.org/10.1111/j.1467-985X.2005.00379.x

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