Mailing Questionnaire

In a mailing questionnaire survey the questionnaire is sent to each individual by post (or, today, online or by SMS), with a request to complete it and return it by a fixed date.

Advantages. It is the least expensive mode. It is the only method that reaches respondents in remote areas who are hard to contact in person or by phone. Because there is no interviewer, there is no influence on respondents and it maintains their anonymity, which makes it the best mode for sensitive questions. It also lets respondents take enough time to give thoughtful answers. …