The problem of determining a consensus value and its uncertainty from the results of multiple methods or laboratories is discussed. Desirable criteria of a solution are presented. A solution based on the ISO Guide to the Expression of Uncertainty in Measurement is introduced and applied in a detailed worked example. A Bayesian hierarchical model motivated by the proposed solution is presented and compared to the solution.
Citation: Journal of Research (NIST JRES) -
Volume: 105 No. 4
NIST Pub Series: Journal of Research (NIST JRES)
Pub Type: NIST Pubs
Bayes, reference materials, uncertainty