Studentized Range

The studentized range, q, which was presented by Newman (1939) and Keuls (1952) and John Tukey in some unpublished notes, is the base statistic for the studentized range distribution, which is used for multiple comparison procedures, such as the single step procedure Tukey's range test and the Duncan's step down procedure and establishing confidence intervals that are still valid after data snooping has occurred.

Read more about Studentized Range:  Description, Studentized Data, See Also

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