Home Page Research Services Online Surveys Customer Satisfaction Employee Satisfaction Custom Research Small Bus. In a Mail Survey There are several keys to keeping mail survey non-response to a minimum. Keep the questionnaire short.
Long questionnaires are a turn-off to most people.
Make the questionnaire attractive. Mail the questionnaire with a compelling cover letter. The cover letter should clearly point out why the respondent's opinion is of importance. Consider including how the data will be used. If possible, the letter should come from an official high in the organization.