Methodological challenges in online trials.

Methodological challenges in online trials.
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在线试验中的方法论挑战。

DOI:
10.2196/jmir.1052
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发表时间:
2009-04-03
影响因子:
7.4
通讯作者:
Wallace P
Wallace P
中科院分区:
医学2区
文献类型:
--
作者:
Murray E;Khadjesari Z;White IR;Kalaitzaki E;Godfrey C;McCambridge J;Thompson SG;Wallace P

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医疗保健和医疗保健服务越来越多地通过互联网提供。有一个强有力的论点是,在线提供的干预措施也应该在线评估,以最大限度地提高试验的外部效度。在线进行试验可以帮助降低研究成本,提高内部效度的某些方面。迄今为止,完全在线进行的健康干预试验相对较少。在本文中,我们描述了试验中出现的主要方法学问题(招募,随机化,干预的保真度,保留和数据质量),考虑在线环境如何影响这些问题,并使用我们的经验,一个在线试验评估干预措施,以帮助危险饮酒者少喝(DownYourDrink),以说明潜在的解决方案。需要进一步开展工作,制定在线审判方法。
Health care and health care services are increasingly being delivered over the Internet. There is a strong argument that interventions delivered online should also be evaluated online to maximize the trial’s external validity. Conducting a trial online can help reduce research costs and improve some aspects of internal validity. To date, there are relatively few trials of health interventions that have been conducted entirely online. In this paper we describe the major methodological issues that arise in trials (recruitment, randomization, fidelity of the intervention, retention, and data quality), consider how the online context affects these issues, and use our experience of one online trial evaluating an intervention to help hazardous drinkers drink less (DownYourDrink) to illustrate potential solutions. Further work is needed to develop online trial methodology.
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