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      Method agreement analysis: a review of correct methodology.

      Theriogenology
      Animals, Bias (Epidemiology), Reproducibility of Results, Reproduction, Research, statistics & numerical data, Sensitivity and Specificity, Statistics as Topic, methods, standards

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          Abstract

          The correct approach to analyzing method agreement is discussed. Whether we are considering agreement between two measurements on the same samples (repeatability) or two individuals using identical methodology on identical samples (reproducibility) or comparing two methods, appropriate procedures are described, and worked examples are shown. The correct approaches for both categorical and numerical variables are explained. More complex analyses involving a comparison of more than two pairs of data are mentioned and guidance for these analyses given. Simple formulae for calculating the approximate sample size needed for agreement analysis are also given. Examples of good practice from the reproduction literature are cited, and common errors of methodology are indicated. 2010 Elsevier Inc. All rights reserved.

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          Author and article information

          Journal
          20138353
          10.1016/j.theriogenology.2010.01.003

          Chemistry
          Animals,Bias (Epidemiology),Reproducibility of Results,Reproduction,Research,statistics & numerical data,Sensitivity and Specificity,Statistics as Topic,methods,standards

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