Post Hoc Test
(will open in new window)
M = treatment/group mean
n = number per treatment/group
Calculate an analysis of variance (e.g., One-way between-subjects 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
and number of treatments.
of the application of this formula
Practice by creating your own data and then check your work with the Virtual Statistician
Tukey Post-Hoc Calculator
(will open in another window) (Only works with n = 8)
of the Analysis of Variance and Tukey Post Hoc Test.