title: An Approach to Combining Results From Multiple Methods Motivated by the ISO GUM.
abstract: 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 motivated by the ISO Guide to the Expression of Uncertainty in Measurement (ISO GUM) 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.
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-8120.
authors.forename: M S
authors.initials: MS
authors.lastname: Levenson
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-8120.
authors.forename: D L
authors.initials: DL
authors.lastname: Banks
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-8120.
authors.forename: K R
authors.initials: KR
authors.lastname: Eberhardt
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-8120.
authors.forename: L M
authors.initials: LM
authors.lastname: Gill
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-8120.
authors.forename: W F
authors.initials: WF
authors.lastname: Guthrie
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-8120.
authors.forename: H K
authors.initials: HK
authors.lastname: Liu
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-8120.
authors.forename: M G
authors.initials: MG
authors.lastname: Vangel
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-8120.
authors.forename: J H
authors.initials: JH
authors.lastname: Yen
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-8120.
authors.forename: N F
authors.initials: NF
authors.lastname: Zhang
keywords: Bayes; reference materials; uncertainty