McDonalds vs Cronbach - Check the validity of a questionnaire with different response options
I am translating this The Young Spine Questionnaire - http://www.spoergeskemaer.dk/wp-content/uploads/YSQ_UK_v_1_1.docx
Responses options include "Yes/No" in some questions. Others have "never, frequently, once or twice". Other questions are a sort of a likert scale.
1) I can not Cronbach in this case, right? It would have be a questionnaire that give a total score/use a sort of likert scale in all questions?
2) Can I use McGonald's Omega to determine the validity of the questionnaire?
Thanks a lot,