Which method involves structured questionnaires to gather data?

The Survey Method is the correct choice for this question because it specifically involves the use of structured questionnaires to collect data from respondents. Structured questionnaires are designed to gather quantifiable data and ensure consistency in the responses, allowing for easy data analysis. This method aims to ask the same questions in the same order to all participants, which helps in achieving reliable and valid results.

In contrast, the Focus Group Method involves discussions among a group of people guided by a moderator, rather than utilizing structured questionnaires. It focuses on exploring perceptions, feelings, and ideas rather than collecting standardized data. The Experiment Method relies on controlled conditions for testing hypotheses, often through manipulation of variables, but does not primarily use structured questionnaires as a main data collection tool. Lastly, the Observation Method entails collecting data through direct observation of behavior and actions rather than through questionnaires, focusing on what participants do instead of what they say. Thus, the Survey Method is uniquely characterized by its structured approach with questionnaires, making it the ideal fit for the question.