Post-hoc Tests

1. Because post hoc tests are run to confirm where the differences occurred between groups, they should only be run when you have a shown an overall significant difference in group means (i.e., a significant one-way ANOVA result).
2. (source: google)
3. Analyze
        Compare Means
             One-way ANOVA
                  Dependent List: xxx
                  Factor: yyy
                  Options
                       Statistics: Descriptive
                       Continue
4.                Post-hoc: Equal Variances Assumed: Tukey
5.                     Continue
6.                OK