Therapist Self-Report of Fidelity to Core Elements of Family Therapy for Adolescent Behavior Problems: Psychometrics of a Pragmatic Quality Indicator Tool

Aaron Hogue, Molly Bobek, Nicole Porter, Alexandra MacLean, Lila Bruynesteyn, Amanda Jensen-Doss, Craig E. Henderson

Research output: Contribution to journalArticlepeer-review

Abstract

Therapist-report measures of evidence-based interventions have enormous potential utility as quality indicators in routine care; yet, few such tools have shown strong psychometric properties. This study describes reliability and validity characteristics of a therapist-report measure of family therapy techniques for treating adolescent conduct and substance use problems: Inventory of Therapy Techniques for Core Elements of Family Therapy (ITT-CEFT). Study participants included 31 staff therapists treating 68 adolescent clients in eight community-based mental health and substance use clinics. Therapists submitted ITT-CEFT checklists and companion audio recordings for 189 sessions. The ITT-CEFT contains 13 techniques identified as core elements of three manualized family therapy models that are empirically supported for the target group. Therapists also reported on their use of three motivational interventions, and independent observers coded the submitted recordings. ITT-CEFT factor validity was shown via confirmatory factor analyses of the tool’s theoretical structure. Derived modules were: Family Engagement (four items; Cronbach’s α =.72); Relational Orientation (five items; α =.74); and Interactional Change (four items; α =.66). Concurrent validity analyses showed fair-to-excellent therapist reliability compared to observer ratings (ICCs range.64–.75); they showed moderate therapist accuracy compared to observer mean scores, reflecting a tendency to overestimate delivery of the techniques. Discriminant validity analyses showed tool differentiation from motivational interventions. Results offer provisional evidence for the feasibility of using the therapist-report ITT-CEFT to anchor quality procedures for family therapy interventions in real-world settings. Trial Registration: The parent clinical trial is registered at www.ClinicalTrials.gov, ID: NCT03342872 (registration date: 11.10.17).

Keywords

  • Adolescent behavior problems
  • Family therapy
  • Fidelity
  • Quality indicator
  • Therapist self-report
  • Usual care

ASJC Scopus subject areas

  • Phychiatric Mental Health
  • Health Policy
  • Public Health, Environmental and Occupational Health
  • Psychiatry and Mental health

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