OBJECTIVES: to describe the process of translation and linguistic and cultural validation of
the Evidence Based Practice Questionnaire for the Portuguese context: Questionário
de Eficácia Clínica e Prática Baseada em Evidências (QECPBE). METHOD: a methodological and cross-sectional study was developed. The translation and
back translation was performed according to traditional standards. Principal
Components Analysis with orthogonal rotation according to the Varimax method was
used to verify the QECPBE's psychometric characteristics, followed by confirmatory
factor analysis. Internal consistency was determined by Cronbach's alpha. Data
were collected between December 2013 and February 2014. RESULTS: 358 nurses delivering care in a hospital facility in North of Portugal
participated in the study. QECPBE contains 20 items and three subscales: Practice
(α=0.74); Attitudes (α=0.75); Knowledge/Skills and Competencies (α=0.95),
presenting an overall internal consistency of α=0.74. The tested model explained
55.86% of the variance and presented good fit: χ2(167)=520.009; p = 0.0001;
χ2df=3.114; CFI=0.908; GFI=0.865; PCFI=0.798; PGFI=0.678; RMSEA=0.077
(CI90%=0.07-0.08). CONCLUSION: confirmatory factor analysis revealed the questionnaire is valid and appropriate
to be used in the studied context.
Objetive: to create a reduced version of the QASCI, which is structurally equivalent to the long one and meets the criteria of reliability and validity. Method: Through secondary data from previous studies, the participants were divided into two samples, one for the development of reduced version and the second for study of the factorial validity. Participants responded to QASCI, the SF 36, the ADHS and demographic questions. Results: A reduced version of 14 items showed adequate psychometric properties of validity and internal consistency, adapted to a heptadimensional structure that assesses positive and negative aspects of care. Conclusion: Confirmatory factor analysis revealed a good fit with the advocated theoretical model.
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