Ensure that there will be a full refund apart from postage return costs if you return a damaged lens via post to an online seller.
At one month post-injury, participants were mailed a hard copy of the EQ-5D-3L™ to complete reflecting on their current health status and return via a self addressed postage paid return envelope.
Individuals interested in participating took the questionnaire from the display, completed it in the location of their choice, and returned it by mail in the postage paid return envelope.
About two to three weeks after the postcard is mailed, a 2nd survey, cover letter, pen, and postage paid return envelope is mailed to all participants who have not yet returned a survey.
A self-addressed, postage paid, return envelope and email or telephone reminders will be included to encourage prompt returns.
Potential respondents were provided postage paid return envelopes addressed to an administrative assistant who removed identifying packaging before returning data to the authors.
About two to three weeks after the 2nd survey mailing, participants who do not return a mailed survey are mailed a shortened, 2-page survey, cover letter, and a postage paid return envelope.
The poster warns that excessive postage, no return address, a foreign postmark, misspelled words, a strange odor, and protruding wires may be signs of a bomb.
This mailing includes a cover letter, a $10 cash incentive, the follow-up survey, and a postage paid return envelope.
The postage paid return envelopes were addressed to the research coordinator at the School of Nursing, Dalhousie University, who matched respondents to the mailing list from the first distribution.
The second mailing included a study package (cover letter, numbered questionnaire, postage paid return envelope) and financial incentive ($5 gift certificate at a popular coffee shop).
