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The Each Pair Stepwise, Newman-Keuls test compares the sample means using an iterative, stepwise procedure. At each iteration, Tukey’s HSD test is used to test two group means. For an example of this test, see Example of the Each Pair Stepwise, Newman-Keuls Test.
Note: There are no mean circles added to the Comparison Circles graph when you use the Each Pair Stepwise, Newman-Keuls test. This is because each comparison has a different cut-off depending on the number of means between the two means being tested. Therefore, each circle would be a different size.

Help created on 3/19/2020