My study is very wide and has 4 questionnaires each have the different Likert scale. Two of them are the 6-point Likert scale, the other two are the 8-point. How to analyze them together?
Is it better to modify all of them on the same point Likert scale to simplify data analysis?
The variables in your study will be decided from the research question, objectives, and hypothesis. Then, depending on the statistical test, you need to decide on the scale to be used in the questionnaire. For example, If you are using the Bi-Nominal test, you have to convert it into 3 point scale. It all seems to be very confusing I understand that so, that’s why I would suggest you talk with your supervisor about it.
I hope this would be helpful!
Take note of important parameters in your questionnaire use 3 point or five-point Likert scale for all parameters.
Firstly you need to analyse whether scale conversion has an impact on your measurement or not. Then, you can convert 6 point scale or 8 point scale to 5 point scale.