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Social scientists commonly conduct surveys to learn about beliefs, attitudes, reported behaviors, or experiences prevalent in a population. These interviews often involve the use of structured questions with closed-ended responses (e.g., true/false, agree/disagree, or multiple choice). Open-ended questions can also yield useful information, especially when researchers need to explore complex issues that do not have a finite or predetermined set of responses.
Carey et al. (Thu,) studied this question.