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Williams, Julie, Leamy, Mary, Pesola, Francesca, Bird, Victoria, Le Boutillier, Clair and Slade, Mike (2015) Psychometric evaluation of the Questionnaire about the Process of Recovery (QPR). British Journal of Psychiatry, 207 (6). pp. 551-555. ISSN 1472-1465

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Abstract

Background: Supporting recovery is the aim of national mental health policy in many countries, including England. There is a need for standardised measures of recovery, to assess policy implementation and inform clinical practice. Only one measure of recovery has been developed in England: the Questionnaire about the Process of Recovery (QPR) which measures recovery from the perspective of adult mental health service users with a psychosis diagnosis.

Aims: To independently evaluate the psychometric properties of the 15-item and 22-item versions of QPR.

Method: Two samples were used: Dataset 1 (n=88) involved assessment of QPR at baseline, two weeks and three months. Dataset 2 (n=399; ISRCTN02507940) involved assessment of QPR at baseline and one year.

Results: For the 15-item version, internal consistency was 0.89, convergent validity was 0.73, test-retest reliability was 0.74 and sensitivity to change was 0.40. Confirmatory factor analysis showed the 15-item version offered a good fit. For the 22 item version comprising two sub-scales, the Interpersonal sub-scale was found to under-perform and the Intrapersonal sub-scale overlaps substantially with the 15 item version. Conclusions: Both the 15-item and the Intrapersonal sub-scale of the 22-item versions of the QPR demonstrated satisfactory psychometric properties. The 15-item version is slightly more robust and also less burdensome, so it can be recommended for use in research and clinical practice.

Declaration of interest: None.

Item Type:	Article
RIS ID:	https://nottingham-repository.worktribe.com/output/765155
Additional Information:	This is an author-produced electronic version of an article accepted for publication in the British Journal of Psychiatry. The definitive publisher-authenticated version is available online at http://bjp.rcpsych.org/content/207/6/551
Schools/Departments:	University of Nottingham, UK > Faculty of Medicine and Health Sciences > School of Health Sciences
Identification Number:	https://doi.org/10.1192/bjp.bp.114.161695
Depositing User:	Slade, Prof Mike
Date Deposited:	10 Dec 2015 11:27
Last Modified:	04 May 2020 17:21
URI:	https://eprints.nottingham.ac.uk/id/eprint/31028

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