Using Implementation Intentions to Self-incentivise Weight-loss

Not Applicable

Completed

• Conditions: Overweight

• Registration Number: NCT03522727
• Lead Sponsor: University of Manchester

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.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2018-05-01
• Study First Submitted QC: 2018-05-01
• Study Start: 2018-05-04
• Study First Posted: 2018-05-11
• Primary Completion: 2018-07-25
• Study Completion: 2018-08-31
• Status Verified: 2018-10
• Last Update Submitted: 2018-10-19
• Last Update Posted: 2018-10-23

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 79

Inclusion Criteria

• Aged 18+

Exclusion Criteria

• Unable or unwilling to complete questionnaire

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Actual Use of Self-Rewards	4 weeks	Self-reported
Body Mass Index	4 weeks	Self-reported

Secondary Outcome Measures

Name	Time	Method
Capabilities, opportunities and motivations	4 weeks	Self-reported

Trial Locations

Locations (2)

Online study; 🇬🇧 Manchester, United Kingdom

University of Manchester; 🇬🇧 Manchester, United Kingdom