Table 2.

Fit Statistics for the Correlated Two-Factor Model and Tests of Invariance for the GAD-7 and PHQ-9 Items

Model	χ 2	df	p	CFI	TLI	RMSEA	SRMR
CFA
UK	1,019.749	103	< 0.001	0.933	0.921	0.066 (0.063, 0.070)	0.042
Ireland	580.696	103	< 0.001	0.930	0.918	0.067 (0.062, 0.072)	0.043
Spain	1,079.059	103	< 0.001	0.928	0.916	0.070 (0.066, 0.074)	0.041
Italy	495.612	103	< 0.001	0.949	0.941	0.061 (0.055, 0.066)	0.034
Invariance
Configural	3,187.083	412	< 0.001	0.933	0.922	0.067 (0.065, 0.069)	0.040
Metric	3,639.737	454	< 0.001	0.924	0.919	0.068 (0.066, 0.070)	0.057