Confirmatory factor analysis of the Evidence-Based Practice Attitude Scale (EBPAS) in a large and representative Swedish sample: is the use of the total scale and subscale scores justified?

Table 3 Model fit information for five alternative models of the EBPAS (N = 565)

Model	χ²	Df	p	CFI	RMSEA	SRMR
First-order (1a)	555.1	85	<.001	.973	.099	0.061
First-order (1b)	399.0	84	<.001	.982	.081	0.053
Second-order (2a)	687.5	87	<.001	.965	.110	0.072
Second-order (2b)	558.5	86	<.001	.973	.098	0.066
Bifactor (3)	450.5	75	<.001	.978	.094	0.058

χ² = Chi-square index, Df Degrees of freedom, CFI Comparative fit index, RMSEA Root mean square error of approximation and SRMR Standardized root mean square residual
Item 11 (“Supervisor required”) and 12 (“Agency required”) in the indicators of the Requirements is fixed to 1. a = without covariance, b = with an added correlation (item 9 and 10), 3 = Bifactor model with error correlation (item 9 and 10)

ISSN: 1471-2288