Regression Discussion > Simple Slopes Analysis for Significant Interactions
Do your categorical variables have more than 2 categories? In other words, are they binary (only 2 categories)?
May 24, 2013 |
Jeremy Taylor
Jeremy Taylor
My categorical moderator is binary.
My predictor has three categories (control and two treatment groups).
May 24, 2013 |
Molly
Molly
I was wondering if someone could help me understand how to conduct a simple slopes analysis for my significant hierarchical regression interactions to see if they are significantly different from zero?
I have three significant interactions. One is with a continuous moderator, categorical predictor, and continuous DV.
The other two are with a categorical moderator AND predictor, and a continuous DV. All the instructions I've found online seem to assume a continuous predictor and moderator and instruct me to center these prior to the analysis. What am I supposed to do when they are categorical?
Thank you!