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Table 2 Measures of global fit, factor reliability and average proportion of variance for the basic CFA model and the CFA model adjusted for the variables physical activity and psychosocial distress

From: Quality of life assessment in patients with heart failure: validity of the German version of the generic EQ-5D-5L™

  Valid n Chi2 Df P-value Chi2/Df TLI CFI RMSEA Factor reliability AVE
Thresholds for model acceptance     >  0.05 <  3 ≥ 0.90 ≥ 0.90 ≤ 0.08 >  0.60 >  0.50
Basic model
 Maximum likelihood method 3225 151.40 5 <  0.001 30.28 0.96 0.98 0.095 0.87 0.58
 Asymptotic distribution-free 3225 110.56 5 <  0.001 22.11 0.89 0.94 0.081 0.87 0.59
Adjusted model
 Maximum likelihood method 3064 151.24 5 < 0.001 30.25 0.96 0.98 0.098 0.87 0.58
 Asymptotic distribution-free 3064 109.87 5 < 0.001 21.98 0.88 0.94 0.083 0.87 0.59
  1. CFA, confirmatory factor analysis; Df, degrees of freedom; TLI, Tucker Lewis Index; CFI, Comparative Fit Index; RMSEA, root mean square error of approximation; AVE, average proportion of variance measured; for thresholds see Schermelleh-Engel, Moosbrugger and Müller 2003; Kline 2011; Hooper, Coughlan and Mullen 2008 [22, 25, 26]