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On interchangeability of two laboratories

Published

Author(s)

Chih-Ming Wang, Hariharan K. Iyer

Abstract

This paper proposes a measure for assessing the degree of equivalence between the two laboratories in a key comparison. The measure is called asymmetric degree of interchangeability. It is asymmetric since, based on this measure, a laboratory may be considered interchangeable with another laboratory but the converse may not be true. Fiducial procedures are presented for testing the hypothesis that a laboratory is (directionally) interchangeable with another. The procedure is based on comparing a probability measure, which is shown closely related to asymmetric degree of interchangeability, with an agreed upon threshold. Computer programs for calculating the p-value of the tests, written using open-source software, are listed.
Citation
Metrologia
Volume
47

Keywords

equivalence, fiducial inference, test of hypotheses

Citation

Wang, C. and Iyer, H. (2010), On interchangeability of two laboratories, Metrologia (Accessed June 23, 2024)

Issues

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Created June 17, 2010, Updated October 12, 2021