Psychometric analysis of ProQOL-BR in nursing: building hospital safety and protection

Rev Bras Enferm. 2024 Dec 16;77(6):e20240085. doi: 10.1590/0034-7167-2024-0085. eCollection 2024.
[Article in English, Portuguese]

Abstract

Objectives: to analyze the psychometric properties of the ProQOL-BR instrument in hospital nursing professionals.

Methods: a methodological study to validate the ProQOL-BR. Confirmatory factor analysis, assessment of local and global adjustment quality, Pearson hypothesis testing and Cronbach's alpha internal consistency analysis were used.

Results: a total of 490 professionals participated. The model presents adequate quality due to factor weights (λ≥ 0.40), acceptable overall fit quality and adequate chi-square ratio and degrees of freedom (χ2/g.1=2.51) for the parameters of CFI (0.923), GFI (0.902), TLI (0.914) and RMSEA (0.042). In terms of validity, it was shown to be adequate with CC=0.89. The internal consistency obtained by standardized Cronbach's alpha was 0.761. Criterion validity was shown to be favorable with significant correlations (0.001).

Conclusions: the instrument was validated regarding content, criteria and reliability. Three questions were removed from the original instrument, ProQOL-BR, leaving the final instrument with 25 questions.

Objetivos:: analizar las propiedades psicométricas del instrumento ProQOL-BR en profesionales de enfermería hospitalaria.

Métodos:: estudio de validación metodológica del ProQOL-BR. Se utilizaron análisis factorial confirmatorio, evaluación de la calidad del ajuste local y ajuste global, prueba de hipótesis de Pearson y análisis de consistencia interna alfa de Cronbach.

Resultados:: participaron 490 profesionales. El modelo presenta calidad adecuada debido a los pesos factoriales ((λ≥ 0,40), bondad de ajuste global aceptable y relación chi-cuadrado y grados de libertad (χ2/g.1=2,51) adecuados para los parámetros CFI (0,923), GFI (0,902), TLI (0,914) y RMSEA (0,042). En validez resultó adecuada con CC=0,89. La consistencia interna obtenida mediante el alfa de Cronbach estandarizado fue de 0,761. La validez de criterio fue favorable con correlaciones significativas (0,001).

Conclusiones:: el instrumento se encuentra validado en su contenido, criterio y confiabilidad. Del instrumento original, ProQOL-BR, se eliminaron tres preguntas, quedando el instrumento final con 25 preguntas.

MeSH terms

  • Adult
  • Brazil
  • Factor Analysis, Statistical
  • Female
  • Humans
  • Male
  • Middle Aged
  • Psychometrics* / instrumentation
  • Psychometrics* / methods
  • Quality of Life / psychology
  • Reproducibility of Results
  • Surveys and Questionnaires