I am working with a questionnaire that has ten questions and the answers are closed type. Should such a questionnaire be validated, even though the answers to the questions are not added together and no aggregate value is obtained, as is the case with the quality of life questionnaire? The questionnaire has already been officially translated from the original language into a number of other languages. That is why there is a certain amount of confusion as to whether such a questionnaire needs to be validated or does not require validation after translation.

Similar questions and discussions