... five of the eight SF-36 scales The pattern of associations of the two BPI scales with corresponding and non-corresponding scales of the WOMAC and SF-36 largely supported the construct validity of ... College, Faculty of Nursing Education, Oslo, Norway.2Department of Public Health and Primary Health Care, University of Bergen,Bergen, Norway.3Buskerud University College, Department of HealthSciences, ... reliabilitywith Cronbach’s alpha >0.80 in assessment of pain andthe impact of pain [36]. The pattern of observed correla-tions between subscales of the BPI measuring constructssimilar to the WOMAC...