Is the devil in the detail? A randomised controlled trial of guided internet-based CBT for perfectionism.
An internet guided self-help cognitive-behavioural treatment (ICBT) for perfectionism was recently found to be effective (see this issue). Such studies stand in need of replication. The aim of this study was to report the outcomes and predictors of change when the treatment is delivered in a UK setting. A total of 120 people (Mean = 28.9 years; 79% female) were randomised to receive ICBT or wait-list control over 12 weeks (trial registration: NCT02756871). While there were strong similarities between the current study and its Swedish counterpart, there were also important differences in procedural details. There was a significant impact of the intervention on the primary outcome measure (Frost Multidimensional Perfectionism Scale, Concern over Mistakes subscale) and also on the Clinical Perfectionism Questionnaire (between group effect sizes d = 0.98 (95% CI: 0.60-1.36) and d = 1.04 (95% CI: 0.66-1.43) respectively using intent-to-treat analyses). Unlike the Swedish study, there was significant non-engagement and non-completion of modules with 71% of participants completing fewer than half the modules. The number of modules completed moderated the rate of change in clinical perfectionism over time. In conclusion, the study indicates the intervention is effective in a UK setting but highlighted the importance of procedural details to optimise retention.
['Shafran|Roz|R|', 'Wade|Tracey D|TD|', 'Egan|Sarah J|SJ|', 'Kothari|Radha|R|', 'Allcott-Watson|Hannah|H|', 'Carlbring|Per|P|', 'Rozental|Alexander|A|', 'Andersson|Gerhard|G|']
D000293:Adolescent D000328:Adult D001008:Anxiety Disorders D015928:Cognitive Behavioral Therapy D003863:Depression D005260:Female D006801:Humans D020407:Internet D008297:Male D008875:Middle Aged D000072639:Perfectionism D011795:Surveys and Questionnaires D016896:Treatment Outcome D055815:Young Adult
Internet-based Perfectionism Non-engagement Completion Moderation Cognitive-behaviour therapy