Methods of validating a questionnaire
Questionnaires are the most frequently used data collection method in educational and evaluation research.
Questionnaires help gather information on knowledge, attitudes, opinions, behaviors, facts, and other information.
Development of a valid and reliable questionnaire is a must to reduce measurement error.
With websites and software products that have an international reach, a substantial part of the user base likely doesn’t speak English, or speaks English as a second language.
Back translate: To get a sense of how effective the translation was, have another independent person translate the translated questionnaire back into the original language.
Here are the original French SUPR-Q items translated back into English.
I have been doing some research and it appears I can do a Rasch analysis has anyone got any free software sites to apply this test and advice?
I will assume that your questionnaire is to be considered as one unidimensional scale (otherwise, Cronbach's alpha doesn't make very much sense).