The Statistical Power and Confidence of Some Key Comparison Analysis Methods to Correctly Identify Participant Bias

Autor:	Blair D. Hall, Ellie Molloy, Annette Koo, Rebecca Harding
Rok vydání:	2021
Předmět:	Common mean degrees of equivalence Computer science Calibration (statistics) Statistics Key (cryptography) key comparison Analysis method Synthetic data sets Statistical power statistical power Metrology
Zdroj:	Metrology Volume 1 Issue 1 Pages 4-73
ISSN:	2673-8244
DOI:	10.3390/metrology1010004
Popis:	The validity of calibration and measurement capability (CMC) claims by national metrology institutes is supported by the results of international measurement comparisons. Many methods of comparison analysis are described in the literature and some have been recommended by CIPM Consultative Committees. However, the power of various methods to correctly identify biased results is not well understood. In this work, the statistical power and confidence of some methods of interest to the CIPM Consultative Committees were assessed using synthetic data sets with known properties. Our results show that the common mean model with largest consistent subset delivers the highest statistical power under conditions likely to prevail in mature technical fields, where most participants are in agreement and CMC claims can reasonably be supported by the results of the comparison. Our approach to testing methods is easily applicable to other comparison scenarios or analysis methods and will help the metrology community to choose appropriate analysis methods for comparisons in mature technical fields.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b687fc3890ebcf6fad9dc8b07f9da778 https://doi.org/10.3390/metrology1010004 Zobrazit plný text záznamu