Interpreting Intercepts

Using Marginal Means to Explain an Interaction to a Non-Statistical Audience

Even with a few years of experience, interpreting the coefficients of interactions in a regression table can take some time to figure out. Trying to explain these coefficients to a group of non-statistically inclined people is a daunting task.

For example, say you are going to speak to a group of dieticians. They are interested [Read more…] about Using Marginal Means to Explain an Interaction to a Non-Statistical Audience

Answers to the Interpreting Regression Coefficients Quiz

by Karen Grace-Martin 6 Comments

Yesterday I gave a little quiz about interpreting regression coefficients. Today I’m giving you the answers.

If you want to try it yourself before you see the answers, go here. (It’s truly little, but if you’re like me, you just cannot resist testing yourself).

True or False?

1. When you add an interaction to a regression model, you can still evaluate the main effects of the terms that make up the interaction, just like in ANOVA. [Read more…] about Answers to the Interpreting Regression Coefficients Quiz