Table 1.

Comparison of Alternative Measurement Models

Models	Factors	χ2/df	Δχ2	RMSEA	IFI	TLI	CFI
1	Seven factors: EL, LL, DD, VG, AB, OI, OO	2.35		0.068	0.913	0.903	0.912
2	Six factors: EL+LL, DD, VG, AB, OI, OO	2.83	277.26**	0.080	0.880	0.868	0.879
3	Five factors: EL+LL, DD, VG, AB, OI + OO	3.84	846.70**	0.099	0.812	0.795	0.811
4	Three factors: EL+LL, DD+VG+AB, OI+OO	4.15	1045.27**	0.104	788	0.773	0.787
5	Two factors: EL+LL, DD+VG+AB+OI+OO	5.21	1648.33**	0.121	0.716	0.696	0.714
6	One factor: EL+LL+DD+VG+AB+OI+OO	7.80	3100.97**	0.153	0.540	0.509	0.538

Note: **p < 0.01.

Abbreviations: EL, existential loneliness; IL, interpersonal loneliness; DD, dedication; VG, vigor; AB, absorption; OI, OCB directed at individuals; OO, OCB directed at organization.