Gauge R&R Methods Compared

The comparison between the three approaches to gauge repeatability and reproducibility (R&R) studies will be carried out in two phases. In the first phase we shall look at the estimates of the various components of variation, and in the second we shall look at how the three approaches use these estimates to characterize the relative utility of the measurement system for a given application.

t would appear that there is still considerable confusion regarding which method to use in evaluating a measurement process. There are many voices speaking on this subject, however, most of them fail to use the guidance provided by statistical theory, and as a result, they end up in a train wreck of confusion and uncertainty. Here the three most common methods will be compared side by side>
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