Some target audiences can be difficult to survey by telephone or internet, so we recommend using a mail survey to reach them.
An initial mailing is sent out that usually includes a cover letter from the client inviting the member/respondent to take the survey and explaining the purpose of the study, a survey questionnaire, and a postage-paid return envelope. Reminder postcards are also sent out periodically encouraging respondents to fill out the survey and return it. To help increase response rates and to offer members/respondents another method of completing the survey, we often include a web address in the initial survey and on the reminder postcard so respondents can go online to take the survey if it is more convenient for them, or in case they have misplaced their questionnaire.
Mail surveys are typically used for membership studies or customer surveys in cases where the client does not have email or phone contact information for respondents. They can also be used to contact difficult-to-reach audiences.