Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Statistics in Metrology: International Key Comparisons and Interlaboratory Studies

Published

Author(s)

N Sedransk, Andrew L. Rukhin, Blaza Toman

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.
Citation
Technometrics

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

Citation

Sedransk, N. , Rukhin, A. and Toman, B. (2007), Statistics in Metrology: International Key Comparisons and Interlaboratory Studies, Technometrics (Accessed May 24, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created July 10, 2007, Updated February 17, 2017