title: Survey (human research)
context: In research of human subjects, a survey is a list of questions aimed at extracting specific data from a particular group of people. Surveys may be conducted by phone, mail, via the internet, and sometimes face-to-face on busy street corners or in malls. Surveys are used to increase knowledge in fields such as social research and demography.
question: What is the purpose of survey research?
answers: extracting specific data from a particular group of people