Assessing safety climate in prehospital settings: testing psychometric properties of a common structural model in a cross-sectional and prospective study

Table 9 Model fit structure model

Indices	Guidance values	N < 250				Guidance values	N > 250
Indices	Guidance values	Original structure		Trimmed structure		Guidance values	Original structure		Trimmed structure
		HEMS 12	HEMS 16	HEMS 12	HEMS 16		Ground 16	Total 16	Ground 16	Total 16
SRMR	< .08	.070	.060	.071	.062	< .08	.044	.040	.050	.046
TLI	> .95	.94	.96	.94	.96	> .92	.96	.97	.96	.96
RMSEA	< .08	.053	.051	.054	.048	< .07	.043	.040	.045	.042
CFI	> .95	.95	.97	.95	.97	> .92	.97	.97	.96	.97

N = sample size. HEMS 12 = HEMS sample 2012, HEMS 16 = HEMS sample 2016, Ground 16 = ground ambulance sample 2016, Total 16 = combined HEMS and ground ambulance 2016 samples. Guidance values retrieved from [76]

ISSN: 1472-6963