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Validation and Psychometric Assessment of the Practice Environment Scale of the Nursing Work Index in the Portuguese
Ana Nascimento1, Élvio de Jesus2, Sofia Pinto de Almeida2
1Universidade Católica Portuguesa, Lisbon, Portugal ana7nascimento@gmail.com.
Background:
The nursing work environment has an impact on patient safety outcomes and its measurement should be a regular practice.
Purpose:
To assess the reliability and construct validity of the Practice Environment Scale of the Nursing Work Index in the Portuguese context.
Methods:
An exploratory factor analysis followed by a confirmatory factor analysis to assess model adjustment quality was performed with a sample of 3,686 nurses.
Results:
The final solution for the exploratory factor analysis comprised 26 items and five factors (56.6% of the total variance). The confirmatory factor analysis, after refinement, showed a stable factor structure.
Conclusions:
The final model showed good construct validity and high reliability, which supports the decision to exclude the items that are not essential to the construct being measured.
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