Using Implementation Intentions to Self-incentivise Weight-loss
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 79
- 试验地点
- 2
- 主要终点
- Actual Use of Self-Rewards
研究概览
简要总结
The aim of the present research is to test the effect of helping people to reward themselves when they have successfully lost weight and the impact this will have on subsequent weight. Each participant will be randomly allocated to one of four conditions. The trial requires 200 participants to perform a fully powered statistical analysis. The four conditions are: (1) a control condition, (2) intervention 1 (form a single self-incentivising implementation intention from a drop-down menu), (3) intervention 2 (form multiple self-incentivising implementation intentions from a drop-down menu), or (4) intervention 3 (asked to form a single self-incentivising implementation intention of their own devising). The main outcome measure will be BMI, which will be self-reported.
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
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 18 Years 至 100 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- •Unable or unwilling to complete questionnaire
研究组 & 干预措施
Control
Participants will be asked to complete a questionnaire.
Intervention 1
Single self-incentivising implementation intention
After completing a questionnaire, participants will be asked to form a self-incentivising implementation intention:
Research shows that rewarding yourself for success can help you to lose weight, but that people often forget to reward themselves. We want you to plan to reward yourself if you achieve your personal weight-loss goal, at the end of 4 weeks. To help you do this, we would like you to complete the following sentence by telling us how you will reward yourself.
Please complete the following sentence with a reward of your own choosing.
If I lose at least ___lbs/kg by the end of 4 weeks, then I will reward myself by...
**Drop down menu**
Learning a new skill...
干预措施: Single self-incentivising implementation intention (Behavioral)
Intervention 2
Multiple self-incentivising implementation intentions
After completing a questionnaire, participants will be asked to form self-incentivising implementation intentions:
Research shows that rewarding yourself for success can help you to lose weight, but that people often forget to reward themselves. We want you to plan to reward yourself if you achieve your personal weight-loss goal, at the end of 4 weeks. To help you do this, we would like you to complete the following sentence by telling us how you will reward yourself. You can choose as many rewards as you like! Please complete the following sentence with a reward of your own choosing.
If I lose at least ___lbs/kg by the end of 4 weeks, then I will reward myself by... and/or...
**Drop down menu**
Learning a new skill...
干预措施: Multiple self-incentivising implementation intentions (Behavioral)
Intervention 3
Self-generated self-incentivising implementation intentions
After completing a questionnaire, participants will be asked to form a self-incentivising implementation intention:
Research shows that rewarding yourself for success can help you to lose weight, but that people often forget to reward themselves. We want you to plan to reward yourself if you achieve your personal weight-loss goal, at the end of 4 weeks. To help you do this, we would like you to complete the following sentence by telling us how you will reward yourself.
Please complete the following sentence with a reward of your own choosing.
If I lose at least ___lbs/kg by the end of 4 weeks, then I will reward myself by...
干预措施: Self-generated self-incentivising implementation intentions (Behavioral)
结局指标
主要结局
Actual Use of Self-Rewards
时间窗: 4 weeks
Self-reported
Body Mass Index
时间窗: 4 weeks
Self-reported
次要结局
- Capabilities, opportunities and motivations(4 weeks)
研究者
Christopher Armitage
Professor of Health Psychology
University of Manchester