@Article{信息:doi 10.2196 / / jmir。1251，作者=“威尔逊，保罗M和Petticrew，马克和卡尔南，迈克和拿撒勒，Irwin”，标题=“财务激励对健康研究人员对在线调查的反应的影响:一项随机对照试验”，期刊=“J医学互联网研究”，年=“2010”，月=“5”，日=“10”，卷=“12”，数=“2”，页=“e13”，关键词=“问卷;电子邮件;随机对照试验;提醒系统;背景:对问卷的不回应会影响调查的有效性，并引入偏见。提供财务激励可以提高邮寄问卷的回复率，但财务激励对在线问卷回复率的影响不那么明显。目的:作为调查的一部分，我们旨在测试财务激励的知识是否会增加在线问卷的回复率。方法:对485名英国公共资助的卫生服务和人口健康研究的主要研究员进行随机对照试验。研究人员通过电子邮件联系参与者，并邀请他们通过嵌入的URL完成一份在线问卷。 Participants were randomly allocated to groups with either ``knowledge of'' or ``no knowledge of'' a financial incentive ({\textsterling}10 Amazon gift voucher) to be provided on completion of the survey. At the end of the study, gift vouchers were given to all participants who completed the questionnaire regardless of initial randomization status. Four reminder emails (sent from the same email address as the initial invitation) were sent out to nonrespondents at one, two, three, and four weeks; a fifth postal reminder was also undertaken. The primary outcome measure for the trial was the response rate one week after the second reminder. Response rate was also measured at the end of weeks one, two, three, four, and five, and after a postal reminder was sent. Results: In total, 243 (50{\%}) questionnaires were returned (232 completed, 11 in which participation was declined). One week after the second reminder, the response rate in the ``knowledge'' group was 27{\%} (66/244) versus 20{\%} (49/241) in the ``no knowledge'' group ($\chi$21 = 3.0, P = .08). The odds ratio for responding among those with knowledge of an incentive was 1.45 (95{\%} confidence interval [CI] 0.95 - 2.21). At the third reminder, participants in the ``no knowledge'' group were informed about the incentive, ending the randomized element of the study. However we continued to follow up all participants, and from reminder three onwards, no significant differences were observed in the response rates of the two groups. Conclusions: Knowledge of a financial incentive did not significantly increase the response rate to an online questionnaire. Future surveys should consider including a randomized element to further test the utility of offering incentives of other types and amounts to participate in online questionnaires. Trial Registration: ISRCTN59912797; http://www.controlled-trials.com/ISRCTN59912797 (Archived by WebCite at http://www.webcitation.org/5iPPLbT7s) ", issn="1438-8871", doi="10.2196/jmir.1251", url="//www.mybigtv.com/2010/2/e13/", url="https://doi.org/10.2196/jmir.1251", url="http://www.ncbi.nlm.nih.gov/pubmed/20457556" }