Individual Work Performance Questionnaire: Translation and validation in Greek

Background: Scholars should measure work performance with valid tools for improving understanding of employees’ attitudes. Aim: To translate and validate the “Individual Work Performance Questionnaire” (IWPQ) in Greek. Methods: Study population included 233 nurses in Greece. We collected our data in December 2023. We employed the forward-backward method to translate and adapt the IWPQ in Greek language. We conducted confirmatory factor analysis to examine the construct validity of the IWPQ. We examined the reliability of the IWPQ by calculating Cronbach’s alpha. Results: The IWPQ showed very good psychometric properties. Our confirmatory factor analysis confirmed the three-factor structure of the IWPQ. All indices indicated an acceptable three-factor model. Cronbach’s coefficient alpha for task performance scale, contextual performance scale, and counterproductive work behavior scale was 0.743, 0.872, and 0.769, respectively. Conclusions: The Greek version of the “Individual Work Performance Questionnaire” is a reliable and valid tool to measure employees’ work performance.