A study of 658 retired persons provided information on the characteristics most desired in retirement centers. Their current leisure time activities were also asked. The study was conducted for the management of a retirement center. This article focuses on the effectiveness of three treatments designed to enhance the response rate to the mailed questionnaire. The combination of the three factors produced response rates from 18% to 47%. The most effective approach focused on the lack of an offer of results, using an altruistic appeal and not encouraging persons to complete the demographics section.