title: Adherence Rating Scale for Cognitive Processing Therapy - Cognitive Only: Analysis of Psychometric Properties.
abstract: BACKGROUND
  The assessment of therapeutic adherence is essential for accurately interpreting treatment outcomes in psychotherapy research. However, such assessments are often neglected.
  
  
  OBJECTIVE
  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.
  
  
  METHODS
  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.
  
  
  CONCLUSIONS
  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.
authors.affiliation: Goethe University,Department of Clinical Psychology and Intervention,Frankfurt Main,Germany.
authors.forename: Clara
authors.initials: C
authors.lastname: Dittmann
authors.affiliation: Goethe University,Department of Clinical Psychology and Intervention,Frankfurt Main,Germany.
authors.forename: Meike
authors.initials: M
authors.lastname: Müller-Engelmann
authors.affiliation: Department of Psychiatry and Behavioral Sciences,Duke University,Durham,North Carolina,USA.
authors.forename: Patricia A
authors.initials: PA
authors.lastname: Resick
authors.affiliation: Goethe University,Department of Clinical Psychology and Intervention,Frankfurt Main,Germany.
authors.forename: Jana
authors.initials: J
authors.lastname: Gutermann
authors.affiliation: Goethe University,Department of Clinical Psychology and Intervention,Frankfurt Main,Germany.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Stangier
authors.affiliation: Humboldt University of Berlin,Department of Psychotherapy and Somatic Psychology,Berlin,Germany.
authors.forename: Kathlen
authors.initials: K
authors.lastname: Priebe
authors.affiliation: Humboldt University of Berlin,Department of Psychotherapy and Somatic Psychology,Berlin,Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Fydrich
authors.affiliation: Central Institute of Mental Health,University of Mannheim/Heidelberg,Department of Psychosomatic Medicine and Psychotherapy,Mannheim,Germany.
authors.forename: Petra
authors.initials: P
authors.lastname: Ludäscher
authors.affiliation: Central Institute of Mental Health,University of Mannheim/Heidelberg,Department of Psychosomatic Medicine and Psychotherapy,Mannheim,Germany.
authors.forename: Julia
authors.initials: J
authors.lastname: Herzog
authors.affiliation: Goethe University,Department of Clinical Psychology and Intervention,Frankfurt Main,Germany.
authors.forename: Regina
authors.initials: R
authors.lastname: Steil
mesh_terms: D000328:Adult; D001883:Borderline Personality Disorder / Q000150:complications / Q000523:psychology / Q000628:therapy*; D003071:Cognition; D015928:Cognitive Behavioral Therapy; D005260:Female; D006801:Humans; D010349:Patient Compliance / Q000706:statistics & numerical data*; D011594:Psychometrics; D015203:Reproducibility of Results; D013313:Stress Disorders, Post-Traumatic / Q000150:complications / Q000523:psychology / Q000628:therapy*; D016896:Treatment Outcome; D014741:Video Recording; D055815:Young Adult
keywords: CPT; PTSD; Post-traumatic stress disorder; cognitive processing therapy; therapeutic adherence; treatment integrity