Psychometric validation of the Polish version of the Multidimensional Work Ethic Profile

The article presents the Polish adaptation and validation of the Multidimensional Profile of Work Ethic (Multidimensional Work Ethic Profile, MWEP; Wielowymiarowy Profil Etyki Pracy (WPEP) in Polish). Confirmatory factor analysis (CFA) was conducted to verify factor validity. The procedure of parcelling items of the questionnaire was applied. Two samples of employees were investigated: 317 participants (sample A) and 297 participants (sample B). CFA showed acceptable fit of empirical data with the seven-factor theoretical model (sample A: Χ² (df)=454 (168), RMSEA=0,073, CFI=0,95; sample B: Χ² (df)=427,77 (168), RMSEA=0,072, CFI=0,93). Satisfactory indicators of reliability were also received. Cronbach alpha coefficients for the Polish version scales ranged from 0,67 to 0,89. Test-retest reliability correlations ranged from 0,78 to 0,85 for five week interval between ratings. WPEP correlated with conscientiousness, organizational commitment, job satisfaction and internal locus of control. Results of the analysis conducted on the Polish samples are similar to those obtained from American samples. peerReviewed publishedVersion