# Tag Archives: dummy coding

## How to test for moderation? (part 1)

Let’s start by defining what moderation means in the context of a regression model or structural equation modeling (SEM). You have probably already tested for moderation without knowing that you were doing something that sounds so sophisticated, because moderation is … Continue reading

Posted in moderation
Tagged categorical variable, dummy coding, interaction, level of measurement, moderation, moderator, predictor
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## How do I include categorical predictors in my regression model?

One common problem researchers face when running a regression analysis is how to include categorical predictors. Unlike using continuous variables, which you can simply add with not previous manipulation, including categorical predictors need some extra work in performing the analysis … Continue reading

Posted in categorical predictor
Tagged categorical variables, coefficient, dummy, dummy coding, reference category, regression
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