Development of a scale to measure fidelity to manualized group-based cognitive behavioural interventions for people with intellectual disabilities

Andrew Jahoda, Paul Willner*, John Rose, Biza Stenfert Kroese, Claire Lammie, Jennifer Shead, Christopher Woodgate, David Gillespie, Julia Townson, David Felce, Aimee Stimpson, Nikki Rose, Pamela MacMahon, Jacqueline Nuttall, Kerenza Hood

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The context for the present study was a cluster-randomized controlled trial of a group-based anger-management intervention, delivered by day-service staff. We aimed to develop a scale to measure the fidelity of manualized cognitive-behavioural therapy (CBT) delivered to adults with intellectual disabilities in group-based settings. A 30-item monitoring instrument (the MAnualized Group Intervention Check: MAGIC) was adapted from an existing fidelity-monitor instrument for individual CBT. Two sessions for 27 groups were observed by pairs of monitors who had no other contact with the intervention. 16 observers participated, in 15 unique pairings. Observers recorded high levels of inter-rater reliability and the scale had good internal consistency. Fidelity ratings predicted two key outcomes of the intervention, and were themselves predicted by the therapists' clinical supervisors.

Original languageEnglish
Pages (from-to)4210-4221
Number of pages12
JournalResearch in Developmental Disabilities
Volume34
Issue number11
DOIs
Publication statusPublished - 1 Nov 2013

Keywords

  • Cognitive-behavioural therapy
  • Fidelity
  • Group
  • Intellectual disability
  • Manual

ASJC Scopus subject areas

  • Clinical Psychology
  • Developmental and Educational Psychology

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