title: Validation of the Portuguese version of the Evidence-Based Practice Questionnaire.
abstract: OBJECTIVE
  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).
  
  
  METHODS
  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).
  
  
  CONCLUSIONS
  confirmatory factor analysis revealed the questionnaire is valid and appropriate to be used in the studied context.
authors.affiliation: Escola Superior de Enfermagem, Universidade do Minho, Braga, Portugal.
authors.forename: Rui Pedro Gomes
authors.initials: RP
authors.lastname: Pereira
authors.affiliation: Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
authors.forename: Ana Cristina Pinheiro
authors.initials: AC
authors.lastname: Guerra
authors.affiliation: Escola Superior de Enfermagem do Porto, Porto, Portugal.
authors.forename: Maria José da Silva Peixoto de Oliveira
authors.initials: MJ
authors.lastname: Cardoso
authors.affiliation: Escola Superior de Enfermagem do Porto, Porto, Portugal.
authors.forename: Alzira Teresa Vieira Martins Ferreira
authors.initials: AT
authors.lastname: dos Santos
authors.affiliation: Escola Superior de Enfermagem do Porto, Porto, Portugal.
authors.forename: Maria do Céu Aguiar Barbieri
authors.initials: Mdo C
authors.lastname: de Figueiredo
authors.affiliation: Centro de Estudos de Medicina Baseada na Evidência, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.
authors.forename: António Cândido Vaz
authors.initials: AC
authors.lastname: Carneiro
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D003466:Cultural Characteristics; D055317:Evidence-Based Practice; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D057566:Self Report; D014177:Translations; D055815:Young Adult