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

From: 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?

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
  1. 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
  2. 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)