Psychometric properties of the Arabic versions of the long (27 items) and short (13 items) forms of the interpersonal mindfulness scale (IMS)

Table 2 Measurement invariance across sex

Model	χ²	df	CFI	RMSEA	SRMR	Model Comparison	Δχ²	ΔCFI	ΔRMSEA	ΔSRMR	Δdf	p
Model 1: IMS
Configural	1782.95	636	0.862	0.059	0.080
Metric	1818.78	659	0.860	0.058	0.096	Configural vs. metric	35.83	0.002	0.001	0.016	23	0.042
Scalar	1836.47	680	0.861	0.057	0.097	Metric vs. scalar	17.69	0.001	0.001	0.001	21	0.668
Model 2: IMS-SF-13
Configural	250.60	118	0.956	0.046	0.051
Metric	256.12	127	0.957	0.044	0.053	Configural vs. metric	5.52	0.001	0.002	0.002	9	0.786
Scalar	258.56	136	0.959	0.041	0.053	Metric vs. scalar	2.44	0.002	0.003	< 0.001	9	0.982

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

ISSN: 1471-244X