An Evaluation of a Dynamic Web-Based Visualization of Community Immunity
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 5,516
- 试验地点
- 1
- 主要终点
- Risk perception
研究概览
简要总结
This study is a PhD project conducted by Ms. Hina Hakim, supervised by Dr. Holly O. Witteman, PhD, and co-supervised Dr. Daniel Reinharz, professors and researchers at the Faculty of Medicine at Laval University. The purpose of this study is to evaluate the effects of visualization conveying the concept of community immunity or herd immunity on risk perception (towards individual, family, community and vulnerable people in communities) (primary outcome) and on emotions, attitudes, knowledge, and behavioural intentions (secondary outcomes).
详细描述
Visualization is a powerful communication mechanism that uses pre-attentive processing to communicate large amounts of information rapidly in understandable and compelling ways (Healey and Enns 2012). A systematic review demonstrates that there are some interventions available for conveying the concept of community immunity, and very few evaluate interventions for their effects on vaccine intentions and uptake as well as their precursors, such as knowledge, attitudes, knowledge and none on emotions (Hakim et al. 2018).
The purpose of this study is to evaluate the effects of visualization conveying the concept of community immunity on risk perception (to individual, family, community and vulnerable people in communities) (primary outcome) and on emotions, attitudes, knowledge, and behavioural intentions (secondary outcomes).
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Factorial
- 主要目的
- Health Services Research
- 盲法
- Single (Investigator)
盲法说明
This will be a single-blinded study because we cannot mask participants to the fact that they have been randomized to a visualization e.g., about measles. However, participants will not necessarily know the purpose of the study arm to which they are assigned,and investigators will be blinded to study arm during data analysis (investigators are not aware of whether the next eligible participant will be receiving treatment or control intervention.)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Members of the general population in Canada
- •At least 18 years old
- •Able to provide free and informed consent
- •Able to read and understand French or English
- •Able to use a computer
排除标准
- •- No internet access
研究组 & 干预措施
controlgeneric
No intervention provided. Participant answers outcome questions about an unnamed vaccine-preventable disease. English and French.
controlmeasles
No intervention provided. Participant answers outcome questions about measles. English and French.
controlpertussis
No intervention provided. Participant answers outcome questions about pertussis. English and French.
controlflu
No intervention provided. Participant answers outcome questions about flu. English and French.
herdimmgeneric
Web-based application (main intervention) provided. Participant answers outcome questions about an unnamed vaccine-preventable disease. English and French.
干预措施: herdimm (Behavioral)
herdimmmeasles
Web-based application (main intervention) provided. Participant answers outcome questions about measles. English and French.
干预措施: herdimm (Behavioral)
herdimmpertussis
Web-based application (main intervention) provided. Participant answers outcome questions about pertussis. English and French.
干预措施: herdimm (Behavioral)
herdimmflu
Web-based application (main intervention) provided. Participant answers outcome questions about flu. English and French.
干预措施: herdimm (Behavioral)
robertkochgeneric
Web-based application (comparator) provided. Participant answers outcome questions about an unnamed vaccine-preventable disease. English only.
干预措施: robertkochgeneric (Behavioral)
sbsnewsgeneric
Video (comparator) provided. Participant answers outcome questions about an unnamed vaccine-preventable disease. English only.
干预措施: sbsnewsgeneric (Behavioral)
guardianmeasles
Video (comparator) provided. Participant answers outcome questions about measles. English only.
干预措施: guardianmeasles (Behavioral)
theotheredmundmeasles
Video (comparator) provided. Participant answers outcome questions about measles. English only.
干预措施: theotheredmundmeasles (Behavioral)
publichealthagencycanadaflu
Video (comparator) provided. Participant answers outcome questions about flu. English and French.
干预措施: publichealthagencycanadaflu (Behavioral)
结局指标
主要结局
Risk perception
时间窗: immediately after intervention or control
6 items assessing risk perception (item 1 = risk perception as comprehension, scale 0-100, higher numbers better; items 2-5 = risk perception as feelings, scale 1-7, higher numbers better; complete list of items and response wording available in uploaded questionnaire herdimm\_phase3\_questionnaire\_2021-03-01.pdf)
次要结局
- Emotions(immediately after intervention or control)
- Knowledge(immediately after intervention or control)
- Trust in information(immediately after intervention or control)
- Vaccination intentions(immediately after intervention or control)
- 5C scale(immediately after intervention or control)