The Effects of Weight Science and Nutrition Education on Weight Control Beliefs and Disordered Eating.
An Experimental Study of the Effects of Weight Science and Nutrition Education on Weight Control Beliefs and Disordered Eating in a Non-clinical Female Sample.
1 other identifier
interventional
150
0 countries
N/A
Brief Summary
People have different beliefs about controlling their weight. Individuals who believe they should control their weight are more likely to have poor body image, low self-esteem and disordered eating. Individuals who believe they should aim for a healthy lifestyle and accept their natural weight have better body image, better self-esteem and less disordered eating. This study investigates the impact of three types of education on participants' beliefs about controlling weight: 1) education about the body's natural regulation of weight; or 2) education about healthy nutrition; or 3) education about both the body's regulation of weight and healthy nutrition. The study will also investigate whether changing participants' beliefs about controlling weight impacts participants' body satisfaction, feelings about themselves and intention to diet. It is predicted that teaching both about the body's regulation of weight and healthy eating will decrease participants' belief in personal control over weight, and increase participants' belief in striving for a healthy lifestyle and accepting their natural weight. In turn, these changes in weight control beliefs are expect to predict improved body satisfaction, feelings about themselves and a lower intention to diet.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jan 2023
Shorter than P25 for not_applicable
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 29, 2022
CompletedStudy Start
First participant enrolled
January 9, 2023
CompletedFirst Posted
Study publicly available on registry
January 13, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 31, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
September 30, 2023
CompletedJanuary 13, 2023
January 1, 2023
3 months
November 29, 2022
January 4, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Change in measure of the Belief in Controlling Weight scale from baseline to post-intervention
Weight Control Beliefs Questionnaire - Belief in Control over Weight (BCWeight) scale. This is a validated self-report measure of the individual's belief in personal control over weight. The minimum score is 9 (low belief in controlling weight) and the maximum score is 36 (high belief in controlling weight). A higher score has been associated with negative/worse outcomes.
Baseline (questionnaires administered prior to watching videos) and Post-Intervention (questionnaires administered after watching the videos) approximately 1 hour after completing baseline questionnaires.
Change in measure of the Belief in Controlling Lifestyle scale from baseline to post-intervention
Weight Control Beliefs Questionnaire - Belief in Control over Lifestyle (BCLifestyle) scale. This is a validated self-report measure of the individual's belief in striving for a healthy lifestyle with acceptance of the resulting weight. The minimum score is 8 (low belief in striving for a healthy lifestyle with acceptance of resulting weight) and the maximum score is 32 (high belief in striving for a healthy lifestyle with acceptance of resulting weight). A higher score has been associated with positive/better outcomes.
Baseline (questionnaires administered prior to watching videos) and Post-Intervention (questionnaires administered after watching the videos) approximately 1 hour after completing baseline questionnaires.
Secondary Outcomes (5)
Change in measure of Self-Esteem from baseline to post-intervention
Baseline (questionnaires administered prior to watching videos) and Post-Intervention (questionnaires administered after watching the videos) approximately 1 hour after completing baseline questionnaires.
Change in measure of Intentions to engage in dietary restraint from baseline to post-intervention
Baseline (questionnaires administered prior to watching videos) and Post-Intervention (questionnaires administered after watching the videos) approximately 1 hour after completing baseline questionnaires.
Change in measure of Body Appreciation from baseline to post-intervention
Baseline (questionnaires administered prior to watching videos) and Post-Intervention (questionnaires administered after watching the videos) approximately 1 hour after completing baseline questionnaires.
Change in measure of Fear of Self-Compassion for Weight and Shape from baseline to post-intervention
Baseline (questionnaires administered prior to watching videos) and Post-Intervention (questionnaires administered after watching the videos) approximately 1 hour after completing baseline questionnaires.
Change in measure of Self-Compassion for Weight & Shape from baseline to post-intervention
Baseline (questionnaires administered prior to watching videos) and Post-Intervention (questionnaires administered after watching the videos) approximately 1 hour after completing baseline questionnaires.
Study Arms (3)
Weight Science + Healthy Eating Education
EXPERIMENTALIn this condition participants will watch two educational videos on the topics of weight science, and healthy eating. The videos were created by a registered psychologist and are each between 20 and 30 minutes in length.
Weight Science + Healthy Sleep Education
OTHERIn this condition participants will watch two educational videos on the topics of weight science, and healthy sleep. The videos were created by a registered psychologist and are each between 20 and 30 minutes in length. We are interested in the effect of weight science education alone, the healthy sleep video was added as an active control so that each condition was watching the same amount of videos.
Healthy Eating + Healthy Sleep Education
OTHERIn this condition participants will watch two educational videos on the topics of healthy eating, and healthy sleep. The videos were created by a registered psychologist and are each between 20 and 30 minutes in length. We are interested in the effect of healthy eating education alone, the healthy sleep video was added as an active control so that each condition was watching the same amount of videos.
Interventions
Educational videos on the topic of weight science created by a registered clinical psychologist.
Educational videos on the topic of healthy eating created by a registered clinical psychologist.
Educational videos on the topic of healthy sleep created by a registered clinical psychologist.
Eligibility Criteria
You may qualify if:
- years of age or older
- Female
- Normal hearing with or without listening device
You may not qualify if:
- Currently diagnosed with an eating disorder
- Has received treatment for an eating disorder at any point in time
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (5)
Tylka TL, Wood-Barcalow NL. The Body Appreciation Scale-2: item refinement and psychometric evaluation. Body Image. 2015 Jan;12:53-67. doi: 10.1016/j.bodyim.2014.09.006. Epub 2014 Oct 21.
PMID: 25462882BACKGROUNDFairburn CG, Beglin SJ. Assessment of eating disorders: interview or self-report questionnaire? Int J Eat Disord. 1994 Dec;16(4):363-70.
PMID: 7866415BACKGROUNDCraig C, Marshall A, Sjostrom M, Bauman A, Lee P, Macfarlane D, Lam T, & Stewart S. International physical activity questionnaire-short form. Journal of American College Health. 2017; 65(7): 492-501.
BACKGROUNDLaliberte MM, Newton M, McCabe R, & Mills JS. Controlling Your Weight Versus Controlling Your Lifestyle: How Beliefs about Weight Control Affect Risk for Disordered Eating, 10534_2006_9060_Fig3_HTML.gif Dissatisfaction and Self-esteem. Cognitive Therapy and Research. 2007; 31(6): 853-869.
BACKGROUNDRosenberg M. Society and the Adolescent Self-Image (Revised edition). Wesleyan University Press. 1989.
BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Michele Laliberte, PhD
St. Joseph's Healthcare Hamilton
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- OTHER
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Psychologist, Clinical Lead, Eating Disorder Clinic
Study Record Dates
First Submitted
November 29, 2022
First Posted
January 13, 2023
Study Start
January 9, 2023
Primary Completion
March 31, 2023
Study Completion
September 30, 2023
Last Updated
January 13, 2023
Record last verified: 2023-01
Data Sharing
- IPD Sharing
- Will not share