Is it possible to run a multiple linear regression analysis when one of the categorical predictors has more than 2 groups?

[MG1997]

I want to run a multiple linear regression analysis with 5 categorical or continuous predictors (independent variables) for a continuous outcome (dependent variable). Is it possible to use a multiple linear regression analysis if one of the predictors has more than 2 groups?

 

[Dason]

Yes

 

[katxt]

Or, equivalently, cast it as a general linear model.

 

[hlsmith]

One group will be the base case and it will bee represented with the intercept and the other two groups will have their own estimate terms.