Study Design
SECONDARY
To investigate the effectiveness of the intervention for reducing body shame,
self-criticism, and BDD-behaviors, a randomized, nonconcurrent, multiple
baseline across participants design was used (Following enrollment, participants were randomized to baseline assessment phases
of different lengths, between 2 and 6 weeks, using randomly drawn sealed
envelopes. Participants completed daily self-report measures via a secure
Internet-based platform throughout the baseline and subsequent 12-session
treatment phase and at 6-months follow-ups. In addition to the daily measures,
standardized outcome measures were used to evaluate the secondary outcomes at
baseline, mid-treatment, posttreatment, and at 6-month follow-up.A second aim was to investigate feasibility of this new treatment approach to
BDD. We assessed credibility of treatment and patient’s expectancy for
improvement (after the third session) and satisfaction with the treatment (after
treatment completion).Prior to data collection, the study was registered and approved by the regional
ethics committee (Registration number 2018/2374-31).