Can I run multiple regression with mostly categorical independent variables? I'd appreciate some examples to cite this approach as one of my reviewers is insisting that I justify the use of multiple regression for categorical IVs.
2 DVs (test scores) interval IVs - 1 score (1-5 scale) Gender dummy coded Age dummy coded 3 levels Member of ethnic minority dummy coded Time spent out of country dummy coded 4 levels Academic Discipline dummy coded 4 levels
Since the independent variables are mixed (mostly categorical) is multiple regression still acceptable? I want to explore the relationship of the IVs independently and in combinations on the test scores (DVs).