I'm testing for statistical significance between four groups, say G1:G4. I run ANOVA and learn that there is a statistically significant difference in means among the four groups. How then, can I test each group against the rest of the group. I ran the Tukey test but that tests G1-G2, G1-G3, etc. I want to test G1 against all of G1:G4. Would I then run a t-test between G1 and G1:G4? Thanks for any input.