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Publication date: 11/10/2021

Test-Retest Error Comparison

The Test-Retest Error Comparison option creates a type of Analysis of Means for Variances or Analysis of Means Ranges chart. This chart shows if there are differences in the test-retest error between operators. For example, you can use this chart to see whether there is an inconsistency in how each operator is measuring. The Analysis of Mean Ranges chart is displayed when ranges are used for variance components.

For information about the options in the red triangle menu next to Operator Variance Test, see Bias Comparison.

For more information about Analysis of Means for Variances charts, see Variance Components.

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