Disordered Eating BehaviorsNCT07885631
A School-Based Intervention to Prevent Disordered Eating in Middle School Students
A study testing School-Based Disordered Eating Prevention Education Program in people with Disordered Eating Behaviors, run by Izmir Katip Celebi University at 1 site in Turkey (Türkiye).
Trial summary
This study aimed to develop an educational program for the prevention of disordered eating behaviors among middle school students and to evaluate its effectiveness. The study was conducted with seventh-grade students and their parents at a middle school in Izmir, Türkiye. Read more about this study
- Who is it for?
- Ages 12 to 13 yearsHealthy volunteers can take part
- Conditions the study is for
- Disordered Eating Behaviors
- What is being tested?
- School-Based Disordered Eating Prevention Education Program
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 235 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 2 Nov 2025to 5 May 2026
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 12 to 13 years
- All sexes
- Healthy volunteers accepted
- Child
Who may be able to join
- Enrolled in the seventh grade at the school where the study is conducted.
- Aged 11-13 years.
Who cannot join
- Having any health condition that would prevent the participant from completing the questionnaires.
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Mediha Mahmutbey Secondary School
Izmir, İzmir, 35000
About this study
Official title: Development, Implementation, and Evaluation of a School-Based Educational Program for the Prevention of Disordered Eating Behaviors in Middle School Students
This study aimed to develop an educational program for the prevention of disordered eating behaviors among middle school students and to evaluate its effectiveness. The study was conducted with seventh-grade students and their parents at a middle school in Izmir, Türkiye. Classes were randomly assigned to the intervention and control groups. The three-week educational program focused on body image, social media literacy, and healthy eating attitudes. The effects of the program were evaluated by comparing eating attitudes, body satisfaction, social media literacy, sociocultural appearance attitudes, dietary quality, nutrient intake, and anthropometric measurements between the groups over time.
Read the detailed description
The study was conducted with seventh-grade middle school students aged 12-13 years (n = 235) and their parents (n = 129). Classes were randomly assigned to the intervention (n = 138 students) and control (n = 97 students) groups. Before the intervention, the Eating Disorder Examination Questionnaire Short Parent Version was administered to parents, and one-day dietary records of their children were collected. The students completed the Numerical Rating Scale, Social Media Literacy Scale, Eating Attitudes Test-26 (EAT-26), Sociocultural Attitudes Towards Appearance Questionnaire-4-Revised, and Mediterranean Diet Quality Index, and their anthropometric measurements were taken.
The scales were administered to the intervention group before and after the intervention and at the 12-week follow-up, and to the control group at baseline and at the 12-week follow-up. The intervention group received a three-week educational program delivered once per week. Each weekly session consisted of two consecutive 40-minute class periods (80 minutes per week), for a total of six 40-minute class periods over three weeks. The control group continued their usual school curriculum with their teachers during the same period. In addition, parents of students in the intervention group received one 40-minute educational session.
- Conditions
- Disordered Eating Behaviors
- Being tested
- School-Based Disordered Eating Prevention Education Program
- Keywords
- disordered eating behaviour, body image, adolescent, social media, education
- Medical subject headings
- Disordered Eating Behavior
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
School-Based Disordered Eating Prevention Education ProgramBehavioural
The intervention consisted of three student modules and one parent module. The first module focused on body image, body satisfaction, body acceptance, and the prevention of weight- and body-related peer bullying. It was delivered by a psychologist specializing in adolescent psychology and included scenarios, videos, and positive peer feedback activities. The second module addressed social media literacy, unrealistic appearance ideals, dieting myths, online information reliability, screen time, and family meals. The third module covered healthy and balanced nutrition, food groups, the balanced plate model, and physical activity, including a classroom-based plate activity. Previous session topics were briefly reviewed at the beginning of each module. Six weeks after the intervention, a 10-minute refresher session was delivered by the researcher, a dietitian. The parent session addressed eating disorders, their symptoms and risk factors, and healthy nutrition principles.
| Study group | Role | What they receive |
|---|---|---|
| Usual School Curriculum | No intervention | The control group continued its regular school curriculum with their teachers during the three-week intervention period. |
| Disordered Eating Prevention Education | Experimental | The intervention group received a three-week educational program consisting of six 40-minute sessions focused on body image, social media literacy, and healthy eating attitudes. Parents of students in the intervention group also received one 40-minute educational session. Receives: Behavioral: School-Based Disordered Eating Prevention Education Program |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in Eating Attitudes Test-26 (EAT-26) Score
Eating attitudes were assessed using a 24-item version of the Eating Attitudes Test-26 (EAT-26). Total scores range from 0 to 72, with higher scores indicating a greater risk of disordered eating attitudes and behaviors.
Measured: Baseline, immediately post-intervention (intervention group only), and 12-week follow-up
Secondary outcomes (8)
Change in Eating Disorder Examination Questionnaire Short Parent Version (EDE-QS-P) Score
Eating disorder symptoms in students were assessed from the parent perspective using the Eating Disorder Examination Questionnaire Short Parent Version (EDE-QS-P). Total scores range from 0 to 33, with higher scores indicating greater severity of eating disorder symptoms.
Measured: Baseline, immediately post-intervention (intervention group only), and 12-week follow-up
Change in Body Satisfaction
Body satisfaction was assessed using a Numerical Rating Scale (NRS), on which students rated their level of satisfaction with their body. The minimum possible score is 0 ("not at all satisfied"), and the maximum possible score is 10 ("very satisfied"). Higher scores indicate greater body satisfaction. Changes in body satisfaction scores were evaluated across the assessment time points.
Measured: Baseline, immediately post-intervention (intervention group only), and 12-week follow-up
Change in Sociocultural Attitudes
Sociocultural attitudes toward appearance were assessed using the Sociocultural Attitudes Towards Appearance Questionnaire-4 Revised (SATAQ-4R), which consists of 31 items across seven subscales assessing internalization of appearance ideals and perceived appearance-related pressures. Items are rated on a 5-point Likert scale. Possible subscale scores range from 4 to 20 for thinness/low body fat internalization and each perceived pressure subscale (family, peers, significant others, and media), from 5 to 25 for muscularity internalization, and from 6 to 30 for general attractiveness internalization. Higher subscale scores indicate greater internalization of sociocultural appearance ideals or greater perceived appearance-related pressure.
Measured: Baseline, immediately post-intervention (intervention group only), and 12-week follow-up
Change in Social Media Literacy
Social media literacy was assessed using the Information Awareness dimension of the Social Media Literacy Scale (SMOÖ). This dimension evaluates students' awareness and critical understanding of information encountered on social media. The minimum possible score is 3, and the maximum possible score is 15. Higher scores indicate greater information awareness in relation to social media content.
Measured: Baseline, immediately post-intervention (intervention group only), and 12-week follow-up
Change in BMI-for-Age Z-Score
BMI-for-age z-scores were calculated based on participants' measured body weight and height using age- and sex-specific reference standards. Changes in BMI-for-age z-scores were evaluated from baseline to the 12-week follow-up.
Measured: Baseline and 12-week follow-up
Change in Waist Circumference
Waist circumference was measured in centimeters (cm) using a non-stretchable measuring tape. Changes in waist circumference were evaluated from baseline to the 12-week follow-up.
Measured: Baseline and 12-week follow-up
Change in Body Fat Percentage
Body fat percentage was assessed using bioelectrical impedance analysis. Changes in body fat percentage were evaluated from baseline to the 12-week follow-up.
Measured: Baseline and 12-week follow-up
Change in Diet Quality and Dietary Intake
Diet quality was assessed using the Mediterranean Diet Quality Index for Children and Adolescents (KIDMED). Total KIDMED scores range from -4 to 12, with higher scores indicating greater adherence to the Mediterranean diet. Dietary intake was assessed using dietary records to estimate energy and nutrient intakes. Changes in diet quality and dietary intake were evaluated from baseline to the 12-week follow-up.
Measured: Baseline and 12-week follow-up
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Oct 2026
- Study start2 Nov 2025
- Primary completion2 Feb 2026
- Study completion5 May 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Disordered Eating BehaviorsStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- This was a cluster-randomized controlled educational intervention study conducted with seventh-grade students at a middle school in İzmir, Türkiye.
- Masking
- None (open label)
- Enrolment
- 235 participants (actual)
Sponsor and investigators
- Lead sponsor
- Izmir Katip Celebi University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Gamze Yurtdaş Depboylu, Izmir Katip Celebi University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07885631
- Sponsor's protocol ID
- 2025-TYL-SABE-0038
- Status last verified
- Oct 2026
- First submitted
- 11 Oct 2026
- Last updated
- 21 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 21 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Development, Implementation, and Evaluation of a School-Based Educational Program for the Prevention of Disordered Eating Behaviors in Middle School Students
- ClinicalTrials.gov ID
- NCT07885631
- Acronym / sponsor ID
- 2025-TYL-SABE-0038
- Conditions
- Disordered Eating Behaviors
- Keywords
- disordered eating behaviour, body image, adolescent, social media, education
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 235 participants (actual)
- Lead sponsor
- Izmir Katip Celebi UniversityUniversity, hospital or other
- Study start
- 2 Nov 2025 (actual)
- Primary completion
- 2 Feb 2026 (actual)
- Study completion
- 5 May 2026 (actual)
- First posted
- 21 Oct 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study aimed to develop an educational program for the prevention of disordered eating behaviors among middle school students and to evaluate its effectiveness. The study was conducted with seventh-grade students and their parents at a middle school in Izmir, Türkiye. Classes were randomly assigned to the intervention and control groups. The three-week educational program focused on body image, social media literacy, and healthy eating attitudes. The effects of the program were evaluated by comparing eating attitudes, body satisfaction, social media literacy, sociocultural appearance attitudes, dietary quality, nutrient intake, and anthropometric measurements between the groups over time.
Detailed description
The study was conducted with seventh-grade middle school students aged 12-13 years (n = 235) and their parents (n = 129). Classes were randomly assigned to the intervention (n = 138 students) and control (n = 97 students) groups. Before the intervention, the Eating Disorder Examination Questionnaire Short Parent Version was administered to parents, and one-day dietary records of their children were collected. The students completed the Numerical Rating Scale, Social Media Literacy Scale, Eating Attitudes Test-26 (EAT-26), Sociocultural Attitudes Towards Appearance Questionnaire-4-Revised, and Mediterranean Diet Quality Index, and their anthropometric measurements were taken.
The scales were administered to the intervention group before and after the intervention and at the 12-week follow-up, and to the control group at baseline and at the 12-week follow-up. The intervention group received a three-week educational program delivered once per week. Each weekly session consisted of two consecutive 40-minute class periods (80 minutes per week), for a total of six 40-minute class periods over three weeks. The control group continued their usual school curriculum with their teachers during the same period. In addition, parents of students in the intervention group received one 40-minute educational session.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- This was a cluster-randomized controlled educational intervention study conducted with seventh-grade students at a middle school in İzmir, Türkiye.
| Arm | Type | Receives |
|---|---|---|
| Usual School Curriculum | No intervention | –The control group continued its regular school curriculum with their teachers during the three-week intervention period. |
| Disordered Eating Prevention Education | Experimental | Behavioral: School-Based Disordered Eating Prevention Education ProgramThe intervention group received a three-week educational program consisting of six 40-minute sessions focused on body image, social media literacy, and healthy eating attitudes. Parents of students in the intervention group also received one 40-minute educational session. |
Who may qualify
- Ages
- 12 to 13 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
Key inclusion criteria (2 listed)
- Enrolled in the seventh grade at the school where the study is conducted.
- Aged 11-13 years.
Key exclusion criteria (1 listed)
- Having any health condition that would prevent the participant from completing the questionnaires.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| School-Based Disordered Eating Prevention Education ProgramThe intervention consisted of three student modules and one parent module. The first module focused on body image, body satisfaction, body acceptance, and the prevention of weight- and body-related peer bullying. It was delivered by a psychologist specializing in adolescent psychology and included scenarios, videos, and positive peer feedback activities. The second module addressed social media literacy, unrealistic appearance ideals, dieting myths, online information reliability, screen time, and family meals. The third module covered healthy and balanced nutrition, food groups, the balanced plate model, and physical activity, including a classroom-based plate activity. Previous session topics were briefly reviewed at the beginning of each module. Six weeks after the intervention, a 10-minute refresher session was delivered by the researcher, a dietitian. The parent session addressed eating disorders, their symptoms and risk factors, and healthy nutrition principles. | Behavioural | Disordered Eating Prevention Education |
Primary outcome
Change in Eating Attitudes Test-26 (EAT-26) Score
Time frame: Baseline, immediately post-intervention (intervention group only), and 12-week follow-up
Eating attitudes were assessed using a 24-item version of the Eating Attitudes Test-26 (EAT-26). Total scores range from 0 to 72, with higher scores indicating a greater risk of disordered eating attitudes and behaviors.
8 secondary outcomes
Change in Eating Disorder Examination Questionnaire Short Parent Version (EDE-QS-P) Score
Time frame: Baseline, immediately post-intervention (intervention group only), and 12-week follow-up
Change in Body Satisfaction
Time frame: Baseline, immediately post-intervention (intervention group only), and 12-week follow-up
Change in Sociocultural Attitudes
Time frame: Baseline, immediately post-intervention (intervention group only), and 12-week follow-up
Change in Social Media Literacy
Time frame: Baseline, immediately post-intervention (intervention group only), and 12-week follow-up
Change in BMI-for-Age Z-Score
Time frame: Baseline and 12-week follow-up
Change in Waist Circumference
Time frame: Baseline and 12-week follow-up
Change in Body Fat Percentage
Time frame: Baseline and 12-week follow-up
Change in Diet Quality and Dietary Intake
Time frame: Baseline and 12-week follow-up
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 21 Oct 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing School-Based Disordered Eating Prevention Education Program in people with Disordered Eating Behaviors, run by Izmir Katip Celebi University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 21 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in Eating Attitudes Test-26 (EAT-26) Score (time frame: Baseline, immediately post-intervention (intervention group only), and 12-week follow-up). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Oct 2026.