[Validating the Spanish version of the Nursing Activities Score].

Area of Science:

• Nursing
• Healthcare Management
• Clinical Assessment

Background:

• Workload score validation is crucial for ensuring appropriate application.
• The Nursing Activities Score (NAS) is a tool used for patient workload assessment.

Purpose of the Study:

• To validate the psychometric properties of the Spanish version of the Nursing Activities Score (NAS).

Main Methods:

• An observational, prospective study involving 1,045 patients across medical-surgical and serious burns units.
• Internal consistency was assessed using Cronbach's α, item-test correlations.
• Reliability (intraobserver and interobserver) was evaluated using intraclass correlation coefficient and Kappa.
• Internal validity was analyzed via principal components analysis, and convergent validity using Spearman correlation with the Nine Equivalent of Nursing Manpower use Score.

Main Results:

• Cronbach's α for internal consistency was 0.373.
• Intraclass correlation coefficients indicated acceptable intraobserver (0.837) and interobserver (0.662) reliability.
• Exploratory factor analysis revealed the first item explained 58.9% of the variance.
• Convergent validity showed a strong Spearman correlation (0.746) with the Nine Equivalent of Nursing Manpower use Score.

Conclusions:

• The Spanish version of the Nursing Activities Score (NAS) demonstrates acceptable psychometric properties.
• These findings support the use of Spanish-NAS for accurate patient workload evaluation in healthcare settings.