CC BY 4.0Scalas, LLodi, ErnestoMagnano, PaolaMarsh, Herbert Warren2025-10-172025-10-1720232024-08-272050-728310.1186/s40359-023-01485-9https://hdl.handle.net/20.500.14802/13807Background: The Well-being Profile (WB-Pro) is a multi-item and multidimensional instrument with strong psychometric properties and a solid theoretical grounding. It includes aspects of hedonic and eudaimonic well-being that can be used at the individual and social levels. Method: We developed the Italian version through back-translation procedures. The aim of this study is to validate the WB-Pro in Italian as well as to better understand its multidimensionality through bifactor analysis. A sample of 1451 participants (910 = women, 62.7%; age range: 18–70, M-age = 32.34, SD-age = 13.64) was involved. Results: The 15-factor structure was confirmed with CFA and ESEM and was invariant across gender, age, and education. We examined convergent and discriminant validity and a bifactorial representation. Short versions of the WB-Pro were tested. Discussion: Even though a few items of the Italian version of the WB-Pro might benefit from revision (e.g., clear-thinking scale), this study confirms the theoretical and empirical strength of the WB-Pro. Conclusions: This study supports the WB-Pro validity and usefulness in studying well-being and for professional psychological applications to assess well-being in both individuals and groups.Multidimensional well-being scaleWell-being profileItalian validationFactor analysisBifactor analysisJournal articlePublished as ‘gold’ (paid) open accessOpenPUB0201098299