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The goal of this clinical trial is to investigate the efficacy of an online group prevention program developed for women at risk for eating disorders with randomized controlled trial.
The main questions it aims to answer are:
Participant will:
Join the online 4-session ACT-based group program Fill the measures at pre-test, post-test and follow-up assessment.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Experimental group | Experimental | ACT based eating disorder prevention program. 4 sessions of 1.5 hours, held once a week |
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| Waiting-list control group | No Intervention | Waiting-list control group |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| ACT-ED: Acceptance and Commitment Therapy based eating disorder prevention program | Other | This intervention protocol was developed specifically for women who have body dissatisfaction and disordered eating behaviors. Based on the psychological flexibility model (hexaflex), it is designed to improve people's body image flexibility using Acceptance and Commitment Therapy techniques. Interventions related to the dimensions of the hexaflex were made during each session. The first session covers values and goal setting. The second session includes creative hopelessness, acceptance, and self-compassion. The third session covers defusion and mindfulness. The last session focuses on self-as-context exercises and the combined use of skills for committed action. |
| Measure | Description | Time Frame |
|---|---|---|
| Disordered eating, assesed by the Turkish form of the Eating disorder examination questionnaire (EDE-Q) | Disordered eating is a risk factor for eating disorders. In a prevalence study conducted in Türkiye, individuals with EDE-Q scores of 3.03 and above were defined as a high-risk group (Deveci, 2020). In this study, EDE-Q scores were assessed for inclusion criteria during enrollment. Additionally, changes in EDE-Q scores are assessed at post-test and follow-up to assess treatment effect. | Baseline (pretest), week 4(posttest), 3-month follow-up |
| Measure | Description | Time Frame |
|---|---|---|
| Body dissatisfaction, assesed by the Turkish form of Body shape Questionnaire (BSQ) | A total score of the questionnaire can be in the range of 34 to 204 where total score lower than 110 represents no concern, a total score between 110 and 137 represents mild concern, a total score between 138 and 166 represents moderate concern, and a total score higher than 167 represent severe concern. In this study, EDE-Q scores were assessed for inclusion criteria during enrollment; participans scores of 110 and above are included. Additionally, changes in EDE-Q scores are assessed at post-test and follow-up. |
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Inclusion Criteria:
Exclusion Criteria:
biological females
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| Name | Affiliation | Role |
|---|---|---|
| Emine Serra Nebati | Ibn Haldun University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ibn Haldun University Psychotherapy Application and Research Center (IPAM) | Istanbul | Basaksehir | 34480 | Turkey (Türkiye) |
IPD used in the results publication. Data will be shared after being anonymized.
Beginning with the publication of results and ending 2 years after the publication of results.
The documents will be accessible by requesting approval from the responsible researcher. It will be shared with those who have sufficient justification.
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There are two groups: experimental and control. Control group will receive the intervention after the follow-up assessment.
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To implement participant blinding, a deception procedure was used. All participants were informed that, due to high demand, they would begin the study at different time points. They were also told that the timing of their participation would be determined randomly.
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| Baseline (pretest), week 4(posttest), 3-month follow-up |
| Body image flexibility, assesed by the Turkish form of the Body Image Acceptance and Action Questionnaire (BI-AAQ) | Body image flexibility (BIF) is a construct derived from the psychological flexibility model. BIF is defined as the capacity to experience perceptions, sensations, feelings, thoughts, and beliefs related to one's body without avoidance while acting in alignment with personal values. The BI-AAQ consists of 12 items; higher scores indicate lower BIF and increased body image inflexibility. In this study, this scale would be used to assess how one's relation with body image-related internal experiences changes after the prevention program. | Baseline (pretest), week 4(posttest), 3-month follow-up |
| Psychological flexibility, assesed by Acceptance and Action Questionnaire (AAQ-II) | The AAQ-II is designed to assess psychological flexibility defined as the capacity to be in contact with the present moment, fully aware of one's thoughts, emotions, and sensations. Higher scores indicate decreased psychological flexibility and increased experiential avoidance. In this study, the scale was used to assess changes in the general psychological flexibility. | Baseline (pretest), week 4(posttest), 3-month follow-up |
| Present moment awareness, assesed by the Turkish form of the Freiburg Mindfulness Inventory (FMI) | Present moment awareness is one of the dimensions of the psychological flexibility model. It is defined as the ability to fully engage with the present moment. Higher scores indicate better present moment awareness. In future studies, it is desired to examine which dimension of the psychological flexibility model has an effect on the treatment outcome. In this study, FMI was used to test its suitability in measuring change in this intervention. | Baseline (pretest), week 4(posttest), 3-month follow-up |
| Contextual Self, assesed by the Turkish form of the Self-As-Context Scale (SACS) | Contextual Self is one of the dimensions of the psychological flexibility model. It is defined as one's ability to view himself with a broader perspective. Higher scores indicate improved contextual self. In future studies, it is desired to examine which dimension of the psychological flexibility model has an effect on the treatment outcome. In this study, SACS was used to test its suitability in measuring change in this intervention. | Baseline (pretest), week 4(posttest), 3-month follow-up |
| Defusion, assesed by the Turkish form of the Cognitive Fusion Scale (CFS) | Defusion is one of the dimensions of the psychological flexibility model. It is defined as one's ability to separate himself from his thoughts. Higher scores indicate fusion, which is the opposite of defusion. In future studies, it is desired to examine which dimension of the psychological flexibility model has an effect on the treatment outcome. In this study, SACS was used to test its suitability in measuring change in this intervention. | Baseline (pretest), week 4(posttest), 3-month follow-up |
| Personality beliefs, assesed by the Turkish form of the Personality Beliefs Questionnaire- Short Form (PBQ-SF) | Obsessive-compulsive personality disorder and borderline personality disorder are the most common personality disorders in eating disorders. PBQ is designed to assess dysfunctional personality beliefs, and higher scores on a subscale indicate stronger dysfunctional beliefs related to the corresponding personality. In future studies, it is desired to examine how the personality beliefs are affected by the prevention program. In this study, PBQ-SF was used to test its suitability in measuring change in personality beliefs by this intervention. | Baseline (pretest), week 4(posttest), 3-month follow-up |
| ID | Term |
|---|---|
| D000098322 | Disordered Eating Behavior |
| D001068 | Feeding and Eating Disorders |
| ID | Term |
|---|---|
| D001519 | Behavior |
| D001523 | Mental Disorders |
| D012817 | Signs and Symptoms, Digestive |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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