Overweight
Conditions
Brief summary
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.
Interventions
BEHAVIORALSingle self-incentivising implementation intention
Participants are asked to form a single self-incentivising implementation intention (if-then plans)
BEHAVIORALMultiple self-incentivising implementation intentions
Participants are asked to form multiple self-incentivising implementation intentions (if-then plans)
BEHAVIORALSelf-generated self-incentivising implementation intentions
Participants are asked to form a self-incentivising implementation intention (if-then plans) without a drop-down menu
Sponsors
University of Manchester
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Investigator)
Eligibility
Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
Yes
Inclusion criteria
* Aged 18+
Exclusion criteria
* Unable or unwilling to complete questionnaire
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Body Mass Index | 4 weeks | Self-reported |
| Actual Use of Self-Rewards | 4 weeks | Self-reported |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Capabilities, opportunities and motivations | 4 weeks | Self-reported |
Countries
United Kingdom
Outcome results
None listed