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Assessment Procedure

Psychometric properties of an instrument to measure activities and participation according to the ICF concept in patients with mental disorders

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Pages 259-267 | Received 04 Jul 2013, Accepted 22 Apr 2014, Published online: 15 May 2014
 

Abstract

Purpose: The International Classification of Functioning, Disability and Health (ICF) conceptualizes the bio-psycho-social model of health and illness, but cannot be used as an assessment instrument in routine care. The objective of this study was to psychometrically test a self-report instrument for measuring activities and social participation (ICF-Mental-A&P) of psychotherapy patients. Methods: For the psychometric evaluation of the ICF-Mental-A&P, participants completed a questionnaire on symptoms, interpersonal problems and quality of life at admission and at discharge of in-patient treatment. A consecutive sample of 2256 patients diagnosed with at least one mental disorder was recruited from eight in-patient units in Germany. Results: After item selection, the ICF-Mental-A&P contained 31 items comprising six subscales examined by confirmatory factor analysis. Subscales had acceptable internal consistency (α = 0.78–0.90) and test–retest correlations (r = 0.71–0.86). There were several expected correlations (r ≥ 0.6) between ICF-Mental-A&P scores and measures of symptoms and interpersonal problems. Conclusions: Findings suggest that the ICF-Mental-A&P is a comprehensive, reliable measure of activities and participation according to the ICF concept for patients with mental disorders. It may therefore be an important instrument in clinical practice and could help to determine and evaluate functioning-related and patient-focused treatment outcomes.

    Implications for Rehabilitation

  • The ICF-Mental-A&P offers the opportunity to assess activities and participation from the patient’s perspective.

  • Besides the reduction of symptoms, these patient-centered outcomes based on limitations and restrictions in daily life are relevant treatment goals.

  • The instrument is available from the first author.

Declaration of interest

This study was granted by the German Federal Ministry of Education and Research (BMBF), GZ: 01GX0745. All authors report no proprietary or commercial interest in any product mentioned or concept discussed in this article.

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