Final answer:
The question "Do you know someone who is a doctor?" is a closed-ended question.
Step-by-step explanation:
Closed-ended questions are those that limit respondents to predefined answer options, typically with a "yes" or "no" response. In this case, the question prompts participants to provide a straightforward answer about whether or not they know someone who is a doctor.
Closed-ended questions are useful for obtaining specific information efficiently and are often employed in surveys to streamline data collection and analysis. However, they may not capture the depth of responses that open-ended questions can elicit.
While closed-ended questions are clear and easy to analyze quantitatively, researchers should carefully consider the type of information they seek and choose question formats that align with their research objectives. In the context of the survey question about knowing a doctor, a closed-ended format is appropriate for obtaining a quick snapshot of respondents' familiarity with medical professionals.
The choice between closed-ended and open-ended questions depends on the research goals, the desired level of detail, and the ease of data analysis.