The Phubbing Scale (PS-8) in the Portuguese population: psychometric properties

Psicologia: Reflexão e Crítica

Psychology: Research and Review

Table 3 Fit indices for the two-factor model of the PS-8

Model	χ²_S-B	df	CFI	NNFI	RMSEA	Δ CFI
Total sample	33.05	19	.99	.99	0.04 [0.02, 0.07]
Men	24.81	19	.99	.98	0.05 [0.00, 0.10]
Women	36.72	19	.99	.98	0.06 [0.03, 0.09]
Configural invariance	63.39	38	.99	.98	0.06 [0.03, 0.08]
Equality constraints on factor loadings	73.31	44	.98	.98	0.06 [0.03, 0.08]	.003
Equality constraints on factor loadings and covariance	73.71	45	.98	.98	0.06 [0.03, 0.08]	.002

Note. N = 391; men, n = 132; women, n = 259; χ²_S-B = Satorra-Bentler chi-square; df = degrees of freedom; CFI = comparative fit index; NNFI = non-normed fit index; RMSEA = root mean square error of approximation with 90% confidence interval; Δ CFI = CFI configural invariance model–CFI constrained model