“…Two orders of confirmatory factor analysis were tested. Results showed that the 18 items developed from the existing concepts and theories of De Vos [48], Diener, Emmons, Larsen and Griffin [8], Flanagan [29], Jiang, Fang, Stith, Liu and Huebner [34], Landry [49], Margolis, Schwitzgebel, Ozer and Lyubomirsky [5], Miller et al [50], Neugarten, Havighurst and Tobin [6], Ngamal, Amir, Kutty, Mastor and Hisham [33], Pavot and Diener [25], Poitrenaud, Vallery-Masson, Valleron, Demeestere and Lion [30], Robinson, Shaver and Wrightsman [31], Steel, Schmidt, Bosco and Uggerslev [27], Zhao, Zhang, Liu, Ji and Lew [26] and reclassified into the first four factors (in the first order) were all confirmed to be real factors of LS (in the second order). All factor weights were statistically significant at more than 0.05 and passed the acceptable analysis criterion of confirmatory factor analysis at more than 0.30 [51,52].…”