A Randomized Effectiveness Trial of a Dissonance‐Based Dual Obesity and Eating Disorder Prevention Program
Authors' conclusion
Project Health produced greater body fat loss/weight gain prevention effects than control participants. However, it only produced marginally greater reductions in eating disorder symptoms, in contrast to past trials. Evaluative conditioning enhanced the body fat loss effects of the food response/attention training element of Project Health.
Study context
- Population
- Young adults (M age = 19.4; 76% female; 58% White)
- Participants
- 138 adults
- Comparison
- Project Health vs educational video control
Methodological detailseffectiveness trial
- Effectiveness trial
Primary result
As reported in the abstract
d
−0.23
posttest
d
−0.53
6-month follow-up
Further findings
Change in eating disorder symptoms, Project Health vs educational video control · posttest and 6-month follow-up
- Intervention effect at posttest, nonsignificant
- d = −0.14
- Intervention effect at 6-month follow-up, significant
- d = −0.33
Body fat loss, adding evaluative conditioning to food response/attention training (exploratory) · posttest and 6-month follow-up
- Significantly enhanced body fat loss effects at posttest
- d = −0.36
- Not significantly enhanced at 6-month follow-up
- d = −0.13
- Exploratory test
Eating disorder symptom reduction, adding evaluative conditioning to food response/attention training (exploratory) · posttest and 6-month follow-up
- Significant effects by posttest
- d = −0.37
- Not significant at 6-month follow-up
- d = 0.18
- Exploratory test
Original publication
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