The goal of this controlled trial is to learn whether a brief single-session intervention (SSI) can reduce binge eating symptoms by targeting overvaluation of weight/shape in women with recurrent binge eating.
The main questions it aims to answer are:
* Does assessment alone reduce binge eating severity and overvaluation of weight/shape compared to a control group undergoing minimal assessment? * Does adding a values-based reflection and goal-setting component (the full SHAPE intervention) add benefits beyond the assessment alone?
Researchers will compare three groups:
1. assessment-only, 2. full SHAPE intervention, and 3. minimal assessment control to see if both active conditions outperform the control, and whether the full intervention adds any benefits beyond the assessment itself
Participants will:
* Complete a semi-structured eating disorder assessment (Eating Disorder Examination) * Depending on assignment, also complete a values-based reflection and goal-setting exercise with psychoeducation * Complete follow-up assessments evaluating binge eating severity, overvaluation of weight/shape, clinical impairment, binge frequency, and related outcomes.
≥ 18 years old
Identify as cisgender female
self-reported BMI ≥ 18.5 kg/m²
Rate the extent to which their weight or shape influences how they feel about themselves as a "4" or higher on a 7-point Likert scale on screening measures
< 18 years old
Assigned male at birth
Gender identity different from biological sex indicated on birth certificate
Purging behaviors (i.e., self-induced vomiting, laxative misuse, or diuretic misuse) ≥ 1x/week in the last 3 months at the time of screening.
Factorial
Assessment-only
BehavioralDiagnostic items of the Eating Disorder Examindation (EDE)
values-based reflection and goal-setting/action-planning exercises
BehavioralAssessment-only intervention + values-based reflection and goal-setting/action-planning exercises
Minimal-Assessment Control
BehavioralInvovles completing only the Intro/Eating Pattern + Bulimic Episodes/Overeating Sections of Eating Disorder Examination (EDE)
Changes in overvaluation of weight/shape
Changes in Shape/weight overvaluation subscale score on 7-Item Eating Disorder Examination Questionnaire
Change in binge eating severity
Change in scores on Binge Eating Scale
Change in Body Image Flexibility
5-item Body Image Acceptance and Action Questionnaire
Change in eating self-efficacy
Score change on Eating Self-Efficacy Brief Scale
Change in readiness to change eating disorder symptoms
Change in Eating Disorder Readiness Ruler scores
Change in eating disorder-related clinical impairment
Score change on Clinical Impairment Assessment
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This trial is not recruiting at the moment. You can still explore other options:
