Surveys are primarily composed of which two components?

Surveys are primarily composed of interviews and questionnaires because these two components are essential for gathering structured data from respondents. Questionnaires allow for the collection of quantitative data through standardized questions, which can be analyzed statistically. They provide a uniform way to solicit information from a larger population, ensuring consistency in the responses. Interviews, on the other hand, facilitate a deeper level of engagement, allowing for qualitative insights and the opportunity to explore respondents' thoughts and feelings in more detail. Combining these two components enables researchers to collect a comprehensive set of data that can inform decision-making and understand public opinions, behaviors, or trends effectively.