Testing the Reliability and Validity of the Nursing Activities Score in Critical Care Nursing

A1 Journal article (refereed)

Internal Authors/Editors

Publication Details

List of Authors: Siv K. Stafseth, Tor Inge Tønnessen, Lien My Diep, Lisbeth Fagerstrøm
Publisher: Springer
Publication year: 2018
Journal: Journal of Nursing Measurement
Journal acronym: J Nurs Meas
Volume number: 26
Issue number: 1
Start page: 142
End page: 162
ISSN: 1945-7049
eISSN: 1945-7049


The purpose of this study was to test the reliability and validity of the conceptual model of critical care nursing using the Nursing Activities Score (NAS) for intensive care unit (ICU) patients.
An observational study conducted in 2011 using the NAS scores of 219 patients in Norway. The inter-rater reliability (IRR) was tested by parallel classifications. The validity was explored by an exploratory factor analysis (EFA) and a confirmatory factor analysis (CFA) as the measurement models in the structural equation model.
Within the paired ratings the Spearman's correlation coefficient was 0.39. The EFA results explained 77% of the variance with six factors. The reduced CFA model resulted in a three-factor model: relationship, prevention and treatment.
The findings supported the IRR and construct validity of the conceptual model of the NAS.

Last updated on 2019-10-12 at 04:27