A Randomize Controlled Trial of the Effect of Emotional Content on the Extent to Which an On-line Medical Educational Video is Forwarded.
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 8,353
- 试验地点
- 2
- 主要终点
- Number of Participants Who Forwarded the Video
研究概览
简要总结
The investigators will conduct a two-arm, randomized controlled trial of the effect of emotional content in online videos on the extent to which the video is disseminated (forwarded). Dissemination can be assessed in terms of the number of views which can increase as a result from sharing and forwarding of the video.
In this study, an experiment video and a control video, both of which are approximately 2.5 minutes long, will be uploaded on YouTube, the most visited video sharing website. The videos concern the WOMAN trial, a large RCT of tranexamic acid in postpartum hemorrhage. The experimental group will receive a video with strongly emotional content (an interview with a postpartum hemorrhage survivor and her husband). The control group will receive a short video in which a researcher conveys the same information (but without the first hand experience of the survivor and her husband). Otherwise, the two videos are identical.
Participants, selected from clinicians and researchers in obstetrics and gynecology, will be randomly allocated to two groups. An e-mail with a link to either of the videos will be sent to the participants. In the e-mail, they will be asked to watch the video and forward the link to their colleagues if they find it helpful.
The primary outcome is video forwarding. The secondary outcome is the number of access to the video that each participant generated.
Data will be collected for 14 days after the e-mails are sent to the participants. The relative risk (RR) of forwarding the videos will be calculated as effect measure and compared using chi-square test. The distribution of the numbers of access to the video that each participant generated will be compared using Wilcoxon signed-rank test.
The hypothesis is that an online video with emotional content has higher chance of being forwarded to other people and therefore, gets higher number of views than an less emotional online video.
详细描述
[Statistical analysis plan for the DIFFUSION trial]
SETTING
Two videos will be uploaded on YouTube through a new account created for this study. The uploaded videos will be embedded in two independent websites with white background. A computer programme has been created to collect the data of access to the videos.
International journals in obstetrics and gynaecology published in 2013 and 2014 will be sought for participant recruitment. The authors of the articles published in the journals who met the inclusion criteria will be assigned ID numbers and randomised to receive either the intervention or control video. Randomised participants will be sent a unique web address (URL) of the video that they are allocated to by e-mail via a mass e-mailing service, Campaign Monitor. Each URL will be linked to the participant's ID number in the database. They will be asked to watch the video and forward it to their colleagues if they find it helpful. If a randomised participant forwards their URL to another person, and that person clicks on it, the click will be recorded against the participant's ID number in the computer programme. Therefore, if there are multiple accesses from the same ID number, it is either because the participant watched the video more than once or because the participant forwarded the URL and other people watched the video.
This trial will be coordinated from the London School of Hygiene & Tropical Medicine (University of London) and conducted worldwide online.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 盲法
- Double (Investigator, Outcomes Assessor)
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Clinicians and researchers in obstetrics and gynaecology who have an e-mail address.
排除标准
- •Clinicians and researchers who are in the countries where YouTube cannot be accessed (China, Iran, Pakistan and Turkmenistan).
结局指标
主要结局
Number of Participants Who Forwarded the Video
时间窗: After 14 days of sending the online videos
A computer programme to track the access to the videos has been made. The number of people who forwarded the video will be analysed based on the data collected with this programme.
次要结局
- Number of Access to the Video Generated as a Result of Video Sharing by Each Participant(After 14 days of sending the online videos)