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Table 4 Goodness of fit indexes for CFA models built on a random subsample of data (n = 3,253)

From: Psychometric behaviour of the strengths and difficulties questionnaire (SDQ) in the Spanish national health survey 2006

   Factor model Chi-Square (df) RMSEA
(IC 90%)
GFI AGFI CFI NFI ECVI
Three uncorrelated factors according EFA analysis 2736.8 0.0758 0.880 0.859 0.963 0.959 0.872
(275) (0.0740–0.0775)      
Three correlated factors according to the EFA analysis 2572.1 0.0597 0.933 0.920 0.965 0.961 0.823
(272) (0.0580–0.0615)      
Five correlated factors according to the EFA analysis 2255.0 0.0589 0.948 0.937 0.970 0.966 0.730
(265) (0.0571–0.0608)      
Five correlated factors according to the theoretical model 2693.3 0.0571 0.927 0.911 0.963 0.959 0.865
  (265) (0.0553–0.0589)