Table 3.

Fit statistics for all models.

Measure/Model	χ2(df)	RMSEA	CFI
1. Mediation
All paths free
Overall sample
1.1 No direct path3	152.21 (19)	0.075 (0.064; 0.086)	0.969
1.2 Total effects4	87.75 (18)	0.056 (0.044; 0.067)	0.984
Change in fit 1.1–1.2	130.81 (1), p < 0.001
2. Mediation
Multilevel Analysis1
All paths free
2.1 No direct path3	156.08 (38)	0.051 (0.043; 0.060)	0.953
2.2 Total effects4	129.88 (36)	0.047 (0.038; 0.056)	0.963
Change in fit 2.1–2.2	26.2 (12), p < 0.001
All primary paths equated across group2
2.3 Total effects4	188.07 (41)	0.054 (0.046; 0.061)	0.942
Change in fit 2.3–2.2	58.19 (5), p < 0.001
Selected paths free
2.4 Total effects4	130.78 (37)	0.045 (0.037; 0.053)	0.963
Change in fit 2.4–2.2	0.9 (1), n.s.
Selected paths free, insignificant paths deleted
2.5 Total effects4	146.25 (51)	0.039 (0.031; 0.046)	0.962
Change in fit 2.5–2.4	15.47 (14), n.s.

¹Refers to the two-group analysis, i.e., CD and controls analyzed separately; ²assumption of no group differences; ³full mediation model; ⁴partial mediation model.