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How are the critical values for Dunnett's and Tukey's multiple comparison tests computed? Prism (up to version 5) does not compute critical values for the ...

GraphPad FAQs

The critical values of q for Tukey multiple comparisons is explained in reference 2. C code can be found here. The critical values of q for Dunnett's test are ...

https://www.graphpad.com/guides/prism/latest/statistics/

Tukey's multiple comparison tests were used to compare all pairs of means (table above). You only care about the first comparison -- control vs. treated -- ...

https://www.graphpad.com/guides/prism/latest/statistics/

Multiplicity adjusted (“exact”) P values can be reported with Bonferroni, Tukey, Dunnett, Dunn, or Holm-Sidak multiple comparisons testing following one- or two

https://www.graphpad.com/guides/prism/latest/user-guide/

The critical values of q for Tukey multiple comparisons is explained in reference 2. C code can be found here. The critical values of q for Dunnett's test are ...

https://www.graphpad.com/guides/prism/8/statistics/

Multiple comparison approach Correct for multiple comparisons using ... Tukey method (3). That means that with some data sets, the Holm-Šídák method ...

https://www.graphpad.com/guides/prism/latest/statistics/

Surprisingly, there are multiple ways to compute these percentile values. ... The chance of finding one or more "outlier" by Tukey's rule in data sampled from a ...

https://www.graphpad.com/guides/prism/latest/user-guide/

The q ratio reported by both the Tukey test and the Newmann-Keuls differ from the one reported by Dunnett's test by a factor of the square root of 2, so cannot ...

GraphPad FAQs

The variable q is used as part of the results of the FDR approach to multiple comparisons, and as part of the Tukey and Dunnett multiple comparisons tests.

https://www.graphpad.com/guides/prism/latest/statistics/

It is only used as a followup to ANOVA. •Unlike the Bonferroni, Tukey, Dunnett and Holm methods, Fisher's LSD does not correct for multiple comparisons.

https://www.graphpad.com/guides/prism/latest/statistics/