Interactions in statistical models are never especially easy to interpret. Throw in non-normal outcome variables and non-linear prediction functions and they become even more difficult to understand. (more…)
group comparisons
Member Training: Interactions in Poisson and Logistic Regression – Part 2
December 1st, 2023 by Kim LoveMember Training: Group Comparisons
August 31st, 2023 by guest contributer
How do you know which method to use when you want to compare groups?
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What is Analysis of Means?
August 21st, 2023 by guest contributerThe 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 TAF Support
Statistical contrasts are a tool for testing specific hypotheses and model effects, particularly comparing specific group means.