Polish version of the Questionnaire for Eudaimonic Well-Being – three factors rather than one

participants and procedure The main objective of the present research was to determine the psychometric properties of the Polish adaptation of the Questionnaire for Eudaimonic Well-Being (QEWB) and to verify the structure of the construct. Four studies were performed with a total of 2273 participants. The psychometric properties of the Polish adaptation of the QEWB were proven. To verify the factorial structure, exploratory and confirmatory factor analysis was used, as well as exploratory structural equation modeling. The factor analysis showed that although assessing the general score of the QEWB is justified, the three-factorial structure fit best (CFI from .929 to .963 and RMSEA from .038 to .052 in all four studies). The criterion validity of the three factors was tested using the Mental Health Continuum-Short Form (MHC-SF), measures of procrastination (PPS, NAPS), personality traits (IPIP-BMF-20) and grit (Grit-S).