Final answer:
Closed-ended questions are valuable for their ability to limit answers to gather specific facts, streamline the interview process, and facilitate easy comparison of responses.
Step-by-step explanation:
The strength of closed-ended questions is that they limit answers to elicit specific facts. Such questions speed up the interview process by providing a structured format that is easy for respondents to follow and answer quickly, ensuring that data collected can be easily compared and tabulated. While closed-ended questions do not typically invite elaboration or discussion due to their restrictive nature, they are very effective in situations where specific, direct answers are sought from subjects who may be treated as experts in survey research.