Precision estimates produced by specially-designed ruggedness tests compared with those derived from collaborative trials, in relation to estimation of measurement uncertainty.

Michael Thompson; Stephen Guffogg; Stephen Stangroom; Paula Osborne; Pauline Key; Roger Wood

doi:10.1039/b208975k

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Precision estimates produced by specially-designed ruggedness tests compared with those derived from collaborative trials, in relation to estimation of measurement uncertainty.

Michael Thompson·Stephen Guffogg·Stephen Stangroom·Paula Osborne·Pauline Key·Roger Wood

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Abstract

We have compared the reproducibility precisions provided by collaborative trials with precisions obtained from ruggedness tests specially designed to try to simulate between-laboratory variation. We found that the ruggedness tests underestimated the reproducibility variability consistently for those analytical methods requiring empirical calibration. The ruggedness tests provided on average a precision merely comparable with repeatability precision. This finding has implications for the estimation of uncertainty.

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Food Analysis Laboratories Reproducibility of Results Journal Article Research Support, Non-U.S. Gov't

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Michael Thompson, Stephen Guffogg, Stephen Stangroom, Paula Osborne, Pauline Key, Roger Wood. 2002. Precision estimates produced by specially-designed ruggedness tests compared with those derived from collaborative trials, in relation to estimation of measurement uncertainty.. https://doi.org/10.1039/b208975k

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