Evaluation of Measurement Systems with a Small Number of Observers

Article

van den Heuvel, Edwin R. (edwin.vandenheuve@organon.com); Trip, Albert   (2002, ASQ and Marcel Dekker, Inc.)   University of Amsterdam, Amsterdam, The Netherlands

Quality Engineering    Vol. 15    No. 2
QICID: 18897    December 2002    pp. 323-331
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Article Abstract

[This abstract is based on the authors' abstract.] The standard reproducibility and repeatability (R&R) study for evaluation of measurement systems assumes that participating observers make up a random sample, but often there are only a few observers, and all of them are included in the study. An alternative measure for gauge R&R in such a situation improves the perception of the quality of the measurement system. It is further shown that a simple estimator may be used, with bias limited to a few percent only.

Keywords

Analysis of variance (ANOVA); Gauges; Repeatability and reproducibility studies (R&R); Prediction; Measurement and control


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