Each Pair Stepwise, Newman-Keuls

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Basic Analysis • Oneway Analysis • Compare Means • Each Pair Stepwise, Newman-Keuls

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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.

The quantile used for Tukey’s HSD is different for each test and is based on the number of group means between the sorted means being tested. In the Newman-Keuls report, the Smallest Quantile Considered is the quantile of the last Tukey’s HSD test that was performed divided by the square root of 2.

The test results are reported in the Connecting Letters Report.

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.

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Help created on 3/19/2020