This is not really good manner, you seem to have copy-pasted some info you had for an earlier meeting or something here, since it actually containes some lines in Dutch about you not being certain wheter or not you want to include them.
Also, in order to answer your question, we need to know about your scales etc. Not the content, but what your data looks like (e.g., you mention ... ratio, what does this variable look like?).
That being said, it looks like multiple regression would do the trick.
I am not sure what you mean with "choice of test" and "choice of regression".