Properties of a Norwegian version of the Ward Organisational Features Scales.

To assess the association between nurses' practice environment and established measures of discharged patients' experiences during hospitalisation it is necessary to have a validated instrument to collect data on nurses' work environment in hospital wards. The purpose of this study was to assess the reliability and validity of a Norwegian version of the Ward Organisational Features Scales (WOFS), an instrument developed in the UK to describe environmental factors influential on the effectiveness of nursing services. After linguistic adaptation of the questionnaire, the reliability and validity were assessed in a sample of 99 nurses, of whom 46 (45%) responded. Most of the 12 tested scales showed acceptable internal consistency (10 had Cronbach's alpha > 0.70) and test-retest reliability (eight had intraclass correlation coefficient >0.70). The WOFS scales' correlations with external variables were in line with hypothesised correlations, thus supporting their validity. Scales describing nurses' influence on ward organisation and management did not perform well, probably due to differences in intraward organisation in the two countries. In spite of a limited sample size this study suggests that the majority of the scales of the WOFS showed satisfactory psychometric properties. They can be useful for assessing and describing aspects of nurses' work environment in Norwegian hospitals.