o Bonferroni test: If the Bonferroni test is requested, SPSS will print out a table of "Multiple Comparisons" giving the mean difference in the dependent variable between any two groups (ex., differences in test scores for any two educational groups). The significance of this difference is also printed, and an asterisk is printed next to differences significant at the .05 level or better. The Bonferroni method is preferred when the number of groups is small.