Treatment fidelity in brief versus standard-length school-based interventions for youth with anxiety

Elisabeth Husabo*, Bente S. M. Haugland, Bryce D. McLeod, Valborg Baste, Åshild Tellefsen Haaland, Jon Fauskanger Bjaastad, Asle Hoffart, Solfrid Raknes, Krister W. Fjermestad, Ronald M. Rapee, Terje Ogden, Gro Janne Wergeland

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

To examine treatment fidelity in a randomized controlled trial of indicated school-based cognitive-behavioral therapy (CBT) delivered in groups to youth with anxiety. We investigated whether adherence and competence (a) differed across brief and standard-length CBT, and (b) if adherence and competence predicted change in anxiety symptoms and impairment. Method: Sessions were observationally coded with the Competence and Adherence Scale for CBT for Anxiety Disorders in Youth. Coders (N = 7) rated 104 sessions from 52 groups delivered by 32 facilitators (M age = 43.2 years, SD = 8.1) to 295 youth (M age = 14.0 years, SD = 0.8). Outcomes were youth- and parent-reported anxiety symptoms and impairment at post-intervention and 1-year follow-up. Linear mixed effect models were used to analyze whether fidelity predicted clinical outcomes. Results: Levels of adherence and competence were adequate in both programs, but higher in brief compared to standard-length CBT p <.001 and p =.010, respectively). Neither adherence nor competence predicted clinical outcomes at any timepoints. Conclusion: Higher levels of adherence and competence in brief CBT suggest that it may be easier for novice CBT providers to achieve fidelity in simplified and less flexible interventions. Contrary to expectation, adherence and competence did not predict clinical outcomes.

Original languageEnglish
Number of pages14
JournalSchool Mental Health
Early online date13 Jun 2021
DOIs
Publication statusE-pub ahead of print - 13 Jun 2021

Bibliographical note

Copyright the Author(s) 2021. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • treatment fidelity
  • adherence
  • competence
  • school-based
  • brief CBT

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