Psychometric evaluation of the Questionnaire about the Process of Recovery (QPR)
Volume
207
Pagination
551 - 555
Publisher
DOI
10.1192/bjp.bp.114.161695
Journal
British Journal of Psychiatry
Issue
ISSN
0007-1250
Metadata
Show full item recordAbstract
Background
Supporting recovery is the aim of national mental health policy in many countries. However, 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- and 22-item versions of the QPR.
Method
Two samples were used: data-set 1 (n = 88) involved assessment of the QPR at baseline, 2 weeks and 3 months. Data-set 2 (n = 399; trial registration: ISRCTN02507940) involved assessment of the QPR at baseline and 1 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, the interpersonal subscale was found to underperform and the intrapersonal subscale overlaps substantially with the 15-item version.
Conclusions
Both the 15-item and the intrapersonal subscale 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.