How can the response rate of mail questionnaires be improved?

Question

Quizplus · Accepted Answer

Including another copy of the questionnaire, offering a small payment, and sending an abridged version in follow-up letters can all increase the likelihood of receiving a response. Enclosing another copy ensures the recipient has another chance to fill out the questionnaire if they lost or misplaced the original. Offering a small payment incentivizes the recipient to take the time to fill out the questionnaire. Providing an abridged version in follow-up letters can remind the recipient of the importance of the survey and make it easier for them to quickly complete it.

How Can the Response Rate of Mail Questionnaires Be Improved