Difference of opinion for Steel-Dwass or Games-Howell post hoc test
For a current study, group sizes for pairwise comparison are problematic, the group sizes are 15, 10, and 5. Because of the unequal group sizes and small sizes (additionally) the researchers are conducting a Welch's ANOVA. Following the Welch's ANOVA the researchers are conducting Games-Howell post hoc either planned or exploratory. The counter argument is being made that if the assumption for hom...