Psychometric evaluation of the Arabic language version of the Birchwood Insight Scale in patients with schizophrenia

Table 3 Measurement Invariance of the Birchwood Insight Scale across sex in the total sample (using one factor model without items one and two)

Model	CFI	RMSEA	SRMR	Model Comparison	ΔCFI	ΔRMSEA	ΔSRMR
Configural	0.788	0.120	0.087	Configural vs. metric
Metric	0.781	0.135	0.086	Configural vs. metric	0.007	− 0.015	0.001
Scalar	0.788	0.120	0.087	Metric vs. scalar	0.007	− 0.015	0.001

Note. CFI = Comparative fit index; RMSEA = Steiger-Lind root mean square error of approximation; SRMR = Standardised root mean square residual

ISSN: 1471-244X