Easy
Post-hoc Tests
SPSS
Free
You run a one-way ANOVA in SPSS to compare average weekly caffeine intake (mg) across 3 groups (No coffee, 1–2 cups/day, 3+ cups/day). You get:
SPSS: Test of Homogeneity of Variances (Levene’s Test) Sig. = .012
And the ANOVA is significant (p < .05). Which post-hoc test is MOST appropriate to report in SPSS?
A
Tukey HSD, because it assumes equal variances
B
Games-Howell, because it does not assume equal variances
C
Fisher’s LSD, because it is always the safest choice after ANOVA
D
No post-hoc test is allowed when Levene’s test is significant