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Table 4 Path analysis results: estimations by generalized least squares (GLS)*

From: Confirmatory factor analytical study of the WHOQOL-Bref: experience with Sudanese general population and psychiatric samples

Structural fit indices Using 6F & 5F models from 623 general population subjects Applying WHO 4- & 6-domain models on
  General population subjects Psychiatric patients Family caregivers Gen population Subjects Psychiatric pts Family caregivers
  6F model 5F model 6F model 5F model 6F model 5F model 4d model 6d model 4d model 6d model 4d model 6d model
No of parameters 16 15 15 16 16 15 12 21 12 21 12 21
Discrepancy (X2) 62.42 9.26 82.69 63.19 63.24 46.08 11.82 121.51 32.12 95.72 36.27 96.28
DF 12 6 12 6 12 6 3 7 3 7 3 7
Discrepancy/DF 5.2 1.54 6.89 8.7 5.27 7.68 3.94 17.36 10.71 13.67 12.09 13.76
GFI 0.97 0.99 0.88 0.94 0.94 0.95 0.99 0.94 0.96 0.91 0.95 0.91
Adjusted GFI 0.93 0.98 0.72 0.79 0.86 0.82 0.96 0.78 0.78 0.63 0.76 0.63
AIC 94.4 39.3 114.7 82.5 95.2 76.1 35.8 163.5 56.1 137.7 60.3 138.3
RMSEA 0.08 0.03 0.14 0.16 0.12 0.15 0.07 0.16 0.18 0.21 0.22 0.21
  1. NOTES: DF = degrees of freedom; 6F mod = 6-factor model; 5F mod = 5-factor model; 4d mod = 4-domain model; 6d mod = 6-domain model; GFI = goodness of fit index; RMSEA = root mean square error; AIC = Akaike index; Gen popn = general population
  2. * Ideal fit indices are: Discrepancy/Df ≤ 5; GFI, Adjusted GFI ≥ 0.9; RMSEA = 0.05 – 0.08; lower AIC