Page "Survey methodology" Paragraph 11

There are several ways of administering a survey.

The choice between administration modes is influenced by several factors, including 1 ) costs, 2 ) coverage of the target population, 3 ) flexibility of asking questions, 4 ) respondents ' willingness to participate and 5 ) response accuracy.

Different methods create mode effects that change how respondents answer, and different methods have different advantages.

The most common modes of administration can be summarized as: