Hi Paige, Thank you for your prompt reply! However, my question differs from the one in the link you shared. In that case, the person observed both a significant Type 3 effect and confidence interval for one of the pairwise comparisons, which seems consistent. In my situation, I have only 3 groups, and I used LSMEANS for pairwise comparisons along with the Type 3 p-value. While the overall test result is significant, none of the 3 pairwise comparisons are. Additionally, my sample size is too small (n=15) to adjust for any interaction term. Moreover, my question is more focused on the discrepancies that arise from selecting different variance-covariance structures.
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