Covid-19 Messaging to Underserved Communities - 2nd Experiment
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 20,460
- 试验地点
- 2
- 主要终点
- Incidence Rate for Knowledge Gaps: Control vs. Any Intervention - Follow up
研究概览
简要总结
The aim of the study is to build off results from our first experiment (NCT04371419) , and test whether messages that acknowledge racial injustice on behalf of institutions affect the retention of knowledge and movement of beliefs and behavior with respect to Covid-19. The investigators will also test the effect of concordance of providers and whether highlighting the unequal burden of the disease has additional effects on knowledge, beliefs and behavior regarding covid-19. The sample will include African American and white adult Americans and oversample those with less than a college degree.
详细描述
Recent data have shown that covid19 is disproportionately infecting and killing African Americans and Latinx people in the United States. Moreover, since our last experiment, the killing of George Floyd by Minnesota police has raised awareness of structural racism in the United States.
The aim of the study is to build off results from our first experiment (NCT04371419) , and test whether messages that acknowledge racial injustice on behalf of institutions affect the retention of knowledge and movement of beliefs and behavior with respect to Covid-19. The investigators will also test the effect of concordance of providers and whether highlighting the unequal burden of the disease has additional effects on knowledge, beliefs and behavior regarding covid-19.The sample will include African American and white adult Americans and oversample those with less than a college degree.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
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
- •adults who self-identify as African American or white.
- •an oversample of individuals with less than a college education
排除标准
- 未提供
结局指标
主要结局
Incidence Rate for Knowledge Gaps: Control vs. Any Intervention - Follow up
时间窗: The outcome was measured at a follow-up within 2 weeks following the intervention
Participants were asked to identify ways to prevent COVID-19 spread and identify four common symptoms. Incidence rate for knowledge gaps is the count of knowledge gaps divided by the maximum possible count: 10.
Incidence Rate Ratio (IRR) - Knowledge Gap - Follow up
时间窗: The outcome was measured at a follow-up within 2 weeks following the intervention
Participants were asked to identify ways to prevent COVID-19 spread and identify four common symptoms. The incidence rate for knowledge gaps is the count of knowledge gaps divided by the maximum possible count: 10. The incidence rate ratio compares the incidence rate of participants in Arm A vs. Arm B within the intervention group (i.e. those who received covid-19-related videos), within in the control group (i.e. those who saw placebo videos), or across the intervention and control group. Arms A and B are described in each Arm/Group Title. The overall number of participants analyzed is all equal across 6 arms/groups because the outcome measure data presented below came from a single negative binomial regression.
Incidence Rate - Safety Gap Score: Control vs. Any Intervention
时间窗: The outcome was measured at a follow-up within 2 weeks following the intervention.
Participants were asked about how often they engaged in four behaviors of interest: if they wore a mask indoors/outdoors; if they washed their hands; if they followed social distancing guidelines. The safety gap index takes values of 0 (if a participant reported that they always practiced the four behaviors of interest) up to 4 (none). Incidence rate for safety gaps is the count of safety gaps divided by the maximum possible count: 4.
Incidence Rate Ratio (IRR) - Information-seeking Behavior
时间窗: The outcome was measured immediately following the intervention in the baseline survey.
Participants were offered the option of requesting additional information on COVID-19 related resources by clicking on up to 5 links that included more content. We measured "information seeking behavior" as the number of links for which participants expressed interest, a count variable between 0 (lowest information seeking behavior) and 5 (greatest information seeking behavior). Incidence rate for interest in links is the count of links demanded divided by the maximum possible count: 5. The incidence rate ratio compares the incidence rate of participants in Arm A vs. Arm B within the intervention group (i.e. those who received covid-19-related videos), within in the control group (i.e. those who saw placebo videos), or across the intervention and control group. Arms A and B are described in each Arm/Group Title. The overall number of participants analyzed is all equal across 6 arms/groups because the outcome measure data presented below came from a single negative binomial regression.
Incidence Rate for Knowledge Gaps: Control vs. Any Intervention
时间窗: The outcome was measured immediately following the intervention in the baseline survey.
Participants were asked to identify ways to prevent COVID-19 spread and identify four common symptoms. The incidence rate for knowledge gaps is the count of knowledge gaps divided by the maximum possible count: 10.
Incidence Rate Ratio (IRR) - Safety Gap Score
时间窗: The outcome was measured at a follow-up within 2 weeks following the intervention.
Participants were asked about how often they engaged in four behaviors of interest: if they wore a mask indoors/outdoors; if they washed their hands; if they followed social distancing guidelines. The safety gap index takes values of 0 (if a participant reported that they always practiced the four behaviors of interest) up to 4 (none). Incidence rate for safety gaps is the count of safety gaps divided by the maximum possible count: 4. The incidence rate ratio compares the incidence rate of participants in Arm A vs. Arm B within the intervention group (i.e. those who received covid-19-related videos), within in the control group (i.e. those who saw placebo videos), or across the intervention and control group. Arms A and B are described in each Arm/Group Title. The overall number of participants analyzed is all equal across 6 arms/groups because the outcome measure data presented below came from a single negative binomial regression.
Willingness to Pay (WTP) for Masks: Control vs. Any Intervention
时间窗: The outcome was measured immediately following the intervention in the baseline survey.
WTP: the participants will be asked to choose between two masks vs an unrestricted gift card. They will be asked what amount of gift card would make them just as happy to receive two mask versus the gift card.
Incidence Rate for Information-seeking Behavior: Control vs. Any Intervention
时间窗: The outcome was measured immediately following the intervention in the baseline survey.
Participants were offered the option of requesting additional information on COVID-19 related resources by clicking on up to five links that included more content. We measured "information seeking behavior" as the number of links for which participants expressed interest, a count variable between 0 (lowest information seeking behavior) and 5 (greatest information seeking behavior). Incidence rate for interest in links is the count of links demanded divided by the maximum possible count: 5.
Incidence Rate Ratio (IRR) - Knowledge Gap
时间窗: The outcome was measured immediately following the intervention in the baseline survey.
Participants were asked to identify ways to prevent COVID-19 spread and identify four common symptoms. The incidence rate for knowledge gaps is the count of knowledge gaps divided by the maximum possible count: 10. The incidence rate ratio compares the incidence rate of participants in Arm A vs. Arm B within the intervention group (i.e. those who received covid-19-related videos), within in the control group (i.e. those who saw placebo videos), or across the intervention and control group. Arms A and B are described in each Arm/Group Title. The overall number of participants analyzed is all equal across 6 arms/groups because the outcome measure data presented below came from a single negative binomial regression.
OLS Regression Coefficients - Willingness to Pay (WTP) for Masks
时间窗: The outcome was measured immediately following the intervention in the baseline survey.
WTP: the participants will be asked to choose between two masks vs an unrestricted gift card. They will be asked what amount of gift card would make them just as happy to receive two mask versus the gift card. The regression coefficients compares the incidence rate of participants in Arm A vs. Arm B within the intervention group (i.e. those who received covid-19-related videos), within in the control group (i.e. those who saw placebo videos), or across the intervention and control group. Arms A and B are described in each Arm/Group Title. The overall number of participants analyzed is all equal across 6 arms/groups because the outcome measure data presented below came from a single ordinary least squares (OLS) regression for WTP masks).
次要结局
未报告次要终点
研究者
Esther Duflo
Abdul Latif Jameel Professor of Poverty Alleviation and Development Economics, MIT; Co-Director, Abdul Latif Jameel Poverty Action Lab
National Bureau of Economic Research, Inc.