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

Hello.


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.


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,

Jorge

Comments

  • 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?


    Thanks,

    Eduard

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