The Impact of Group Commitment Contracts on Smoking Cessation and Weight Loss
试验速览
- 阶段
- 不适用
- 状态
- 暂停
- 入组人数
- 3,600
- 试验地点
- 1
- 主要终点
- Smoking Cessation / Weight Loss
研究概览
简要总结
We will conduct a randomized controlled trial to evaluate the effectiveness of group commitment contracts for smoking cessation and weight loss.
详细描述
Initial screening will be conducted online via the Qualtrics survey platform. Respondents meeting the inclusion/exclusion criteria will immediately be randomized into one of the intervention arms described below, and then take a baseline survey. This baseline survey will also be conducted online via the Qualtrics survey platform. The initial screening, randomization, and baseline survey should take approximately 15 minutes total and can be completed anywhere the participant has an internet connection.
INTERVENTION: Respondents who meet the inclusion/exclusion criteria will be randomized into one of the following arms:
- Control Arm (No Intervention)
- Group Contract Arm
- Individual Monetary Rewards Arm
- Individual Commitment Contract Arm
Subjects in Arms #2-4 will be cross-randomized into two subgroups:
A. Additional information treatments on the likelihood of success of the different incentives and contracts, with the goal of shifting "naives" to "sophisticates."
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
- •Aged 18 years or older
- •Has smartphone with capability to reach internet daily and download app
- •Able and willing to visit Quest location or take an at-home verification test
- •Willing to furnish a payment method for commitment contract stakes
- •If completing a smoking cessation contract:
- •Daily smoker
- •If completing a weight loss contract:
- •Has access to a functioning scale
- •Interest in losing weight at a pace of 2 lb or fewer per week, with a target BMI at or above 18.5
排除标准
- •Pregnancy
- •Any terminal illness
研究组 & 干预措施
Control
Subjects are not offered a group commitment contract, individual commitment contract, or individual monetary rewards. Subjects do not receive additional information treatments.
Group Commitment Contract + Information
Subjects are offered a group commitment contract for smoking cessation or weight loss and receive additional information treatments.
干预措施: Group Commitment Contract (Behavioral)
Group Commitment Contract + Information
Subjects are offered a group commitment contract for smoking cessation or weight loss and receive additional information treatments.
干预措施: Information (Other)
Individual Monetary Rewards + Information
Subjects are offered individual monetary rewards for smoking cessation or weight loss and receive additional information treatments.
干预措施: Individual Monetary Rewards (Behavioral)
Individual Monetary Rewards + Information
Subjects are offered individual monetary rewards for smoking cessation or weight loss and receive additional information treatments.
干预措施: Information (Other)
Individual Commitment Contract + Information
Subjects are offered an individual commitment contract for smoking cessation or weight loss and receive additional information treatments.
干预措施: Individual Commitment Contract (Behavioral)
Individual Commitment Contract + Information
Subjects are offered an individual commitment contract for smoking cessation or weight loss and receive additional information treatments.
干预措施: Information (Other)
Group Commitment Contract
Subjects are offered a group commitment contract for smoking cessation or weight loss and receive no additional information treatments.
干预措施: Group Commitment Contract (Behavioral)
Individual Monetary Rewards
Subjects are offered individual monetary rewards for smoking cessation or weight loss and receive no additional information treatments.
干预措施: Individual Monetary Rewards (Behavioral)
Individual Commitment Contract
Subjects are offered an individual commitment contract for smoking cessation or weight loss and receive no additional information treatments.
干预措施: Individual Commitment Contract (Behavioral)
结局指标
主要结局
Smoking Cessation / Weight Loss
时间窗: 6 months
Participants will be directly prompted to answer whether they have been able to quit smoking or reach their target weight in the past six months. If a participant self-reports a claim of success, they will be asked to furnish at-home (and, in some cases, in-person) verification.
次要结局
未报告次要终点