Is it ok to use a question similar to a question from someone else's questionaire? The question is not that specific, but the possible answers are similar. For example the question similar to yours measures level of involvement on a 7 point scale, while you measure level of importance on different scale. Howerer, possible answers that are measured are similar (some are the same, but not all of them). I know that when scales are used in social sciences, they are cited, but this is not a scale, more like a descriptive question.
Is this considered plagiarism? The advisor thought that it's not.