NCT06192537

Brief Summary

A quasi-experimental design (i.e., "One-Group Pretest-Posttest Design") will be applied among 34 convenient samples of undergraduate students in their first year of nutrition sciences program at Ariel University and Tel-Hai College. The intervention will take place at the simulation centers of the institutions. All participants will be asked to wear an obesity simulation suit (Unisex obesity Simulation suit, Erler-Zimmer, Germany) and to participate in a standardized scenario that simulates meetings between a person with obesity and a 'registered dietitian'. The 'registered dietitian' will be presented by a professional role-player and the scenario will encompass different levels of weight bias. At baseline, 1- and 3-week post-intervention both groups will be asked to fill in a survey using "Qualtrics" software. The survey will include the Anti-Fat Attitudes questionnaire (AFA), the Short-Form of Fat-Phobia scale (F-scale), the Weight-Implicit Association-Test (weight-IAT), and the Jefferson Scale of Empathy. Data on demographics, weight history, and perception, measurement of actual weight and height, and the beliefs about the causes of obesity questionnaire will be collected at baseline.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
34

participants targeted

Target at P25-P50 for not_applicable obesity

Timeline
Completed

Started Mar 2024

Shorter than P25 for not_applicable obesity

Geographic Reach
1 country

1 active site

Status
completed

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

December 21, 2023

Completed
15 days until next milestone

First Posted

Study publicly available on registry

January 5, 2024

Completed
2 months until next milestone

Study Start

First participant enrolled

March 1, 2024

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2024

Completed
Last Updated

September 5, 2024

Status Verified

August 1, 2024

Enrollment Period

5 months

First QC Date

December 21, 2023

Last Update Submit

August 31, 2024

Conditions

Outcome Measures

Primary Outcomes (4)

  • Anti-Fat Attitudes questionnaire ('AFA')

    The 'AFA' indicates explicit anti-fat attitudes toward people with obesity and is composed of 13-items rated on a 10-point Likert scale and divided into three subscales ('dislike', 'fear about fat' and 'willpower'), with higher total scores indicating stronger anti-fat attitudes.

    Change from baseline at three- weeks post-intervention

  • The short-form of fat-phobia scale (' F-scale')

    The 'F-scale' indicates fat-phobic attitudes toward people with obesity and is composed of 14-pairs of adjectives that are used to describe people with obesity (e.g., 'no willpower' vs. 'has willpower') and ranked on a 1-5 scale according to the point closest to the adjective name that describes their feelings and beliefs. Higher scores indicate stronger fat-phobic attitudes.

    Change from baseline at three- weeks post-intervention

  • Weight Implicit Association Test ('IAT')

    IAT tool is an indirect measure of implicit bias toward weight which uses the constructs of "fat people" versus "thin people" and the polarized attitudes of "good" and "bad" to detect implicit weight bias.

    Change from baseline at three- weeks post-intervention

  • The Jefferson Scale of Empathy (S-version)

    A 20-item scale that is designed to measure empathy in medical students.

    Change from baseline at three- weeks post-intervention

Secondary Outcomes (6)

  • Demographics

    At baseline

  • Weight perception

    At baseline

  • Weight history

    At baseline

  • Objective weight measurement

    At baseline

  • Objective height measurement

    At baseline

  • +1 more secondary outcomes

Study Arms (1)

Intervention

EXPERIMENTAL
Behavioral: A role-playing exercise by utilizing an obesity suit in a simulation scenario

Interventions

All participants will be asked to wear an obesity simulation suit (Unisex obesity Simulation suit, Erler-Zimmer, Germany) and to participate in a standardized scenario that simulates meetings between a person with obesity and a 'registered dietitian'. The 'registered dietitian' will be presented by a professional role-player and the scenario will encompass different levels of weight bias through dialogue and the use of inappropriate equipment.

Intervention

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • undergraduate students in their first year of the nutrition sciences program at Ariel University or Tel-Hai College
  • age ≥18 years
  • having fluency in Hebrew
  • ability to wear an obesity suit
  • willingness to participate in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ariel University

Ariel, 40700, Israel

Location

Related Publications (1)

  • Tayar-Wachsberger I, Green G, Pinus M, Tepper S, Sherf-Dagan S. Examining the effect of an obesity suit role-playing exercise on empathy and weight bias in nutrition students. Nutrition. 2025 Oct;138:112813. doi: 10.1016/j.nut.2025.112813. Epub 2025 Apr 19.

MeSH Terms

Conditions

ObesityWeight Prejudice

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsPrejudiceSocial BehaviorBehavior

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal investigator

Study Record Dates

First Submitted

December 21, 2023

First Posted

January 5, 2024

Study Start

March 1, 2024

Primary Completion

August 1, 2024

Study Completion

August 1, 2024

Last Updated

September 5, 2024

Record last verified: 2024-08

Locations