
Tukey's HSD
Post Hoc Test Steps

example  calculator
formula:

M = treatment/group mean
n = number per treatment/group

Steps
 Calculate an analysis of variance (e.g., Oneway betweensubjects
ANOVA).
 Select two means and note the relevant variables (Means, Mean Square
Within, and number per condition/group)
 Calculate Tukey's test for each mean comparison
 Check to see if Tukey's score is statistically significant with Tukey's
probability/critical value table taking into account appropriate df_{within}
and number of treatments.
 An example of the application
of this formula
 Practice by creating your own data and then check your work with
the Virtual Statistician Tukey PostHoc
Calculator (will open in another window) (Only works with n
= 8)
 A description of the Analysis
of Variance and Tukey Post Hoc Test.
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