Table 1.

Relative fit of confirmatory factor-analysis models

Model	χ2	df	P	GFI	NFI	CFI	RMR	RMSEA
1	62.8	34	<0.001	0.77	0.84	0.92	0.11	0.15
2	75.0	34	<0.001	0.72	0.81	0.88	0.12	0.17

Notes: Model 1 is Obsession (Items 1–5) and Compulsion (Items 6–10); Model 2 is Interference/Severity (Items 1–3, 6–8) and Resistance/Control (Items 4, 5, 9, and 10).

Abbreviations: CFI, comparative fit index; df, degrees of freedom; GFI, goodness-of-fit index; NFI, normed fit index; RMR, root mean-square residual; RMSEA, root mean-square error of approximation.