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Validity and Reliability of the Persian Practice Environment Scale of Nursing Work Index
Safa Elmi1, Hadi Hassankhani2, Farahnaz Abdollahzadeh3
1Student's Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
Background:
The practice environment pivotal role in patients and nurses better outcomes is evident. Practice Environment Scale of Nursing Work Index (PES-NWI) is widely utilized to assess nursing work environments. The present study was conducted to demonstrate the validity and reliability of the Persian version of PES-NWI.
Materials And Methods:
The instrument was translated and its psychometrics were investigated by content, construct validity (factor analysis), and homogeneity (internal consistency and intraclass correlation) on a sample of 350 nurses at educational hospitals in East Azerbaijan, Iran.
Results:
The 30 items loaded onto 4 factors explained 34.95-50.06% of the variance. The items across the factors differed slightly from those reported by the original author of the PES-NWI. Cronbach's alpha and Pearson coefficient for the entire instrument and also for extracted factors was 0.70-0.96.
Conclusions:
The Persian version of PES-NWI has an appropriate level of validity and reliability in the Iranian setting for nurses. The subscale of Nursing Foundations for quality care needs modification.
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