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Using Implementation Intentions to Self-incentivise Weight-loss

Primary Purpose

Overweight

Status
Completed
Phase
Not Applicable
Locations
United Kingdom
Study Type
Interventional
Intervention
Single self-incentivising implementation intention
Multiple self-incentivising implementation intentions
Self-generated self-incentivising implementation intentions
Sponsored by
University of Manchester
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Overweight

Eligibility Criteria

18 Years - 100 Years (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • Aged 18+

Exclusion Criteria:

  • Unable or unwilling to complete questionnaire

Sites / Locations

  • Online study
  • University of Manchester

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm Type

No Intervention

Experimental

Experimental

Experimental

Arm Label

Control

Intervention 1

Intervention 2

Intervention 3

Arm Description

Participants will be asked to complete a questionnaire.

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...

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...

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…

Outcomes

Primary Outcome Measures

Body Mass Index
Self-reported
Actual Use of Self-Rewards
Self-reported

Secondary Outcome Measures

Capabilities, opportunities and motivations
Self-reported

Full Information

First Posted
May 1, 2018
Last Updated
October 19, 2018
Sponsor
University of Manchester
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1. Study Identification

Unique Protocol Identification Number
NCT03522727
Brief Title
Using Implementation Intentions to Self-incentivise Weight-loss
Official Title
Using Implementation Intentions to Self-incentivise Weight-loss
Study Type
Interventional

2. Study Status

Record Verification Date
October 2018
Overall Recruitment Status
Completed
Study Start Date
May 4, 2018 (Actual)
Primary Completion Date
July 25, 2018 (Actual)
Study Completion Date
August 31, 2018 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
University of Manchester

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No

5. Study Description

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.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Overweight

7. Study Design

Primary Purpose
Prevention
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
79 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Control
Arm Type
No Intervention
Arm Description
Participants will be asked to complete a questionnaire.
Arm Title
Intervention 1
Arm Type
Experimental
Arm Description
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...
Arm Title
Intervention 2
Arm Type
Experimental
Arm Description
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...
Arm Title
Intervention 3
Arm Type
Experimental
Arm Description
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…
Intervention Type
Behavioral
Intervention Name(s)
Single self-incentivising implementation intention
Intervention Description
Participants are asked to form a single self-incentivising implementation intention (if-then plans)
Intervention Type
Behavioral
Intervention Name(s)
Multiple self-incentivising implementation intentions
Intervention Description
Participants are asked to form multiple self-incentivising implementation intentions (if-then plans)
Intervention Type
Behavioral
Intervention Name(s)
Self-generated self-incentivising implementation intentions
Intervention Description
Participants are asked to form a self-incentivising implementation intention (if-then plans) without a drop-down menu
Primary Outcome Measure Information:
Title
Body Mass Index
Description
Self-reported
Time Frame
4 weeks
Title
Actual Use of Self-Rewards
Description
Self-reported
Time Frame
4 weeks
Secondary Outcome Measure Information:
Title
Capabilities, opportunities and motivations
Description
Self-reported
Time Frame
4 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
100 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Aged 18+ Exclusion Criteria: Unable or unwilling to complete questionnaire
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Christopher Armitage, PhD
Organizational Affiliation
University of Manchester
Official's Role
Principal Investigator
Facility Information:
Facility Name
Online study
City
Manchester
ZIP/Postal Code
M13 9PL
Country
United Kingdom
Facility Name
University of Manchester
City
Manchester
ZIP/Postal Code
M13 9PL
Country
United Kingdom

12. IPD Sharing Statement

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Using Implementation Intentions to Self-incentivise Weight-loss

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