The process for translating questionnaires is one thing that is exactly the same in Market and Usability Research. Jeff Sauro, a highly regarded usability professional, posted “4 Steps to Translating a Questionnaire” on his blog last month.
His four steps are:
- Translate the questionnaire into the target language
- Back translate
- Pretest the items
- Validate the items
Go read the whole post here. He has fantastic examples of why you need to back translate (something a lot of Market Research firms are hesitant to do).