What is a primary research method involving questionnaires?

Administering structured data collection instruments is the primary research method involving questionnaires because it emphasizes the systematic gathering of responses through a predefined set of questions. This approach allows researchers to collect quantifiable data from a large number of respondents, making it easier to analyze and interpret results statistically. Questionnaires are designed to ensure consistency, reliability, and objectivity in responses, which contributes to the overall validity of the research.

Other research methods, such as gathering qualitative data solely, tend to focus more on open-ended questions or discussions, which doesn’t align with the structured format of questionnaires. Collecting opinions through informal conversations lacks the systematic approach that questionnaires provide, making it less suited for rigorous data collection. Conducting experiments in controlled environments refers to a different methodology focused on manipulation and observation rather than employing questionnaires to gather information from participants.