Adherence Rating Scale for Cognitive Processing Therapy - Cognitive Only: Analysis of Psychometric Properties.

Journal Article (Journal Article;Multicenter Study)

BACKGROUND: The assessment of therapeutic adherence is essential for accurately interpreting treatment outcomes in psychotherapy research. However, such assessments are often neglected. AIMS: To fill this gap, we aimed to develop and test a scale that assessed therapeutic adherence to Cognitive Processing Therapy - Cognitive Only (CPT), which was adapted for a treatment study targeting patients with post-traumatic stress disorder and co-occurring borderline personality symptoms. METHOD: Two independent, trained raters assessed 30 randomly selected treatment sessions involving seven therapists and eight patients who were treated in a multicentre randomized controlled trial. RESULTS: The inter-rater reliability for all items and the total score yielded good to excellent results (intraclass correlation coefficient [ICC] = 0.70 to 1.00). Cronbach's α was .56 for the adherence scale. Regarding content validity, three experts confirmed the relevance and appropriateness of each item. CONCLUSION: The adherence rating scale for the adapted version of CPT is a reliable instrument that can be helpful for interpreting treatment effects, analysing possible relationships between therapeutic adherence and treatment outcomes and teaching therapeutic skills.

Full Text

Duke Authors

Cited Authors

  • Dittmann, C; Müller-Engelmann, M; Resick, PA; Gutermann, J; Stangier, U; Priebe, K; Fydrich, T; Ludäscher, P; Herzog, J; Steil, R

Published Date

  • November 2017

Published In

Volume / Issue

  • 45 / 6

Start / End Page

  • 661 - 670

PubMed ID

  • 28219458

Electronic International Standard Serial Number (EISSN)

  • 1469-1833

Digital Object Identifier (DOI)

  • 10.1017/S1352465816000679


  • eng

Conference Location

  • United States