Can I test a continous moderator variable with moderational multiple regression?

[AbsolutelyNoIdea]

And can I test (separately from question 1 above) a categorical moderator variable (with 3 groups) with moderational multiple regression?

 

[Karabiner]

I am not sure what exactely you mean by the term "moderational multple regression",
but if you ment to ask whether continuous variables or categorical variables with
more than 2 categories can be used as moderators, then its "yes".

With kind regards

Karabiner