group comparisons

Member Training: Group Comparisons

August 31st, 2023 by

How do you know which method to use when you want to compare groups?

What is Analysis of Means?

August 21st, 2023 by

The classic way to compare means in analysis of variance is examining pairwise differences in means after an F test.. It’s great for many problems, but sometimes your research question isn’t about pairwise differences.

Pairwise differences are not ideal if your research question is if, like the Sesame Street song, one of these groups is not like the others. Perhaps, you are trying to assure that groups conform to a common standard. Analysis of Means (ANOM) helps in all these settings. (more…)

Member Training: Statistical Contrasts

March 31st, 2021 by

Statistical contrasts are a tool for testing specific hypotheses and model effects, particularly comparing specific group means.