[Validation of the Spanish version of the Evidence Based Practice Questionnaire in Nurses].
BACKGROUND
The lack of adequate instruments prevents the possibility of assessing the competence of health care staff in evidence-based decision making and further, the identification of areas for improvement with tailored strategies. The aim of this study is to report about the validation process in the Spanish context of the Evidence-Based Practice Questionnaire (EBPQ) from Upton y Upton.


METHODS
A multicentre, cross-sectional, descriptive psychometric validation study was carried out. For cultural adaptation, a bidirectional translation was developed, accordingly to usual standards. The measuring model from the questionnaire was undergone to contrast, reproducing the original structure by Exploratory Factorial Analysis (EFA) and Confirmatory Factorial Analysis (CFA), including the reliability of factors.


RESULTS
Both EFA (57.545% of total variance explained) and CFA (chi(2)=2359,9555; gl=252; p < 0.0001; RMSEA=0,1844; SRMR=0,1081), detected problems with items 7, 16, 22, 23 and 24, regarding to the original trifactorial version of EBPQ. After deleting some questions, a reduced version containing 19 items obtained an adequate factorial structure (62.29% of total variance explained), but the CFA did not fit well. Nevertheless, it was significantly better than the original version (chi(2)=673.1261; gl=149; p < 0.0001; RMSEA=0.1196; SRMR=0.0648).


CONCLUSIONS
The trifactorial model obtained good empiric evidence and could be used in our context, but the results invite to advance with further refinements into the factor "attitude", testing it in more contexts and with more diverse professional profiles.
de Pedro Gómez
Joan
J
Escuela Universitaria de Enfermería y Fisioterapia, Universitat de les Illes Balears, Palma, Islas Baleares, España. depedro@uib.es
Morales-Asencio
José Miguel
JM
Abad
Albert Sesé
AS
Veny
Miquel Bennasar
MB
Roman
María José Ruiz
MJ
Ronda
Francisco Muñoz
FM
D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D055318:Evidence-Based Nursing; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D011795:Surveys and Questionnaires; D055815:Young Adult