Table 1.

Results of confirmatory factor analyses of model testing of PSS-14, PSS-10 and PSS-4

	χ2	df	p-value	CFI	RMSEA	SRMR
PSS-14
1-factor model	1341.7	77	< 0.001	0.747	0.096	0.096
2-factor model	557.2	76	< 0.001	0.904	0.059	0.059
PSS-10
1-factor model	886.0	35	< 0.001	0.762	0.116	0.091
2-factor model	198.9	34	< 0.001	0.954	0.052	0.048
PSS-4
1-factor model	80.9	2	< 0.001	0.900	0.147	0.068
2-factor model	7.0	1	< 0.001	0.992	0.014	0.057

CFI = Comparative Fit Index; RMSEA = root mean square error of approximation; SRMR = Standardised root mean square residuals.