Psychometric evaluation of Iranian version of the evidence-based practice questionnaire (EBPQ)‎ : a methodological study

Abstract EN

Background: There are different tools for assessing evidence-based practice in nursing in Iran, however, there are some limitations in each of them, and they do not examine EBP comprehensively.

Objectives: The purpose of this study was to evaluate the validity and reliability of the Persian version of EBPQ.

Methods: This study was a methodological research on 300 nurses working in Guilan province (Iran).

A cluster sampling was done.

After a forward-backward translation, the questionnaire was translated into Persian and its psychometric evaluation was done.

Results: CVIs for all items were 0.8 and CVRs were 0.63.

All of the impact scores were > 1.5.

Cronbach’s alpha of the scale was 0.92.

The ICC test was 0.96 and significant (P < 0.001).

In exploratory factor analysis,KMOwas 0.84 and Bartlett’s test was significant (P < 0.001).

Confirmatory factor analysis showed an acceptable fit model.

Conclusions: This study introduces the evidence-based practice questionnaire (EBPQ) as a valid and reliable tool to assess the status of evidence-based practice among nurses in Iran