Özet:

Aim: The "Evidence-based Practice Questionnaire for Nurses", created by Upton and Upton in 2006, was tested in this study to determine its validity and reliability in Turkish. Method: 217 nurses made up the sample for this methodological study. Between November 18, 2021, and April 15, 2022, the study data was gathered online (through WhatsApp and email). The programs IBM SPSS 26 and AMOS 24 were used to examine the data. Result: To evaluate the questionnaire's validity, content validity, criterion, and construct validity (both exploratory and confirmatory) were done. The questionnaire's content validity index was discovered to be 0.972. Internal criterion validity (lower-upper groups comparison) was found to have acceptable values of t=28.924, p=0.000, and item-total correlations varied from 0.562 to 0.827 across all subscales. In the exploratory factor analysis, the "Kaiser Meyer Olkin" and "Barlett Test" (KMO: 0.955, Barlett's test x2: 4504,032 p0.001), the eigenvalue analysis (2 factors with an eigenvalue above 1), and the total variance explanation (64.245%) were explored in order to analyze the construct validity. Most of the fit indices of all subscales were found to be in the acceptable/excellent fit levels in confirmatory factor analysis. Internal consistency reliability coefficients (Cronbach's Alpha: 0.963), item-total score correlations (0.562 -0.827), scoring consistency (Intraclass correlation: 0.963), Hotelling's T2 Test (F= 11,606, p=0.000), standard measurement error (SEM: 1.746.98), and top-down impact analysis (min fr= 0.5%, max fr= 1.4%) were used to assess the subscales' reliability. Conclusion: The research revealed that the Nurse Evidence-based Practice Questionnaire is statistically valid and reliable.

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