“…Ryff developed this self-report scale in 1989. The short 18-item PWBS with six subscales was used in this study: selfacceptance (2,8,10), autonomy (9,12,18), positive relationships with others (3,11,13), purpose in life (5,14,16), personal growth (7,15,17) and environmental mastery (1,4,6). Ryff confirmed the reliability of the original version of PWBS (0.89) using Cronbach's alpha coefficient, as well as its validity through content validity (28).…”