The quality in psychiatric care-Addiction outpatient instrument: Psychometric properties and patient views of the quality of care.

Confirmatory factor analysis showed adequate to excellent goodness-of-fit indices supporting the 9-factor structure of the QPC-AOP. The results thus demonstrate that the concept of quality of care to a large extent is equivalent among outpatients from general psychiatry and from outpatient addiction services. Internal consistency for the full QPC-AOP was adequate, but poor for some of the separate factors. The patients' ratings of quality of care were generally high; the highest rating was for Encounter and the lowest for Discharge.