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McDonalds vs Cronbach - Check the validity of a questionnaire with different response options


I am translating this The Young Spine Questionnaire -

Responses options include "Yes/No" in some questions. Others have "never, frequently, once or twice". Other questions are a sort of a likert scale.

My doubts:

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,



  • HI jorge,

    I don't think this is the right place to ask these questions (as they are not Opensesame specific). I recommend you post it some other place on the web. Maybe research gate?



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