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|Author(s):||N Sedransk; Andrew L. Rukhin; Blaza Toman;|
|Title:||Statistics in Metrology: International Key Comparisons and Interlaboratory Studies|
|Published:||July 10, 2007|
|Abstract:||An approach to the analysis of key comparisons data is proposed using a model taken from meta-analysis metrology. Under the assumption of Gaussian distributions and equivalent qualification of all participating laboratories the analysis of data from interlaboratory studies is explored. The model leads to a class of weighted means estimators for the consensus value and to a method of assessing the uncertainty of the resulting estimates. Derivation of Bayes estimators shows that these also belong to the meta-analysis class.|
|Keywords:||DerSimonian-Laird estimator,interlaboratory study,key comparison reference value,Mandel-Paule algorithm,median,meta-analysis,uncertainty of Type A,uncertainty of Type B,weighted means|