Every time I am developing a questionnaire, I am faced with one challenge.
For example, if I ask a respondent to mention the brands that s/he has ever used (multiple response), and there is a follow up question on which brands the person is currently using. Is there a way through which only those brands mentioned in the first question (ever used) appear in the second question (currently using)?
The second question should be multiple response again. I want to avoid a scenario whereby an enumerator can, by mistake, select an option that was not selected in the first question. For example, if a person has never used Brand B in question 1, that brand should not appear in question 2.