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Table 4 Results of multigroup confirmative factor analysis using data from BA sample (n = 418) and RA sample (n = 230)

From: Psychometric properties and longitudinal validation of the self-reporting questionnaire (SRQ-20) in a Rwandan community setting: a validation study

  χ 2 Δχ 2 Δdf P RMSEA (90% CI) RMR GFI CFI TLI
Model A:
Equal factors
163.27 - - - 0.018 (0.003-0.028) 0.008 0.97 0.99 0.98
Model B:
Equal factor loadings
165.76 2.50 9 0.98 0.016 (0.000-0.025) 0.008 0.97 0.99 0.99
Model C:
Equal covariances
190.29 24.53 15 0.06 0.018 (0.004-0.026) 0.012 0.96 0.98 0.98
Model D:
Equal error variances
269.23 78.94 14 0.000 0.030 (0.023-0.036) 0.013 0.95 0.95 0.95
  1. Note: Δχ 2:: nested χ 2 difference; Δdf: nested df difference; P: P-value assuming the less restrained model to be correct; RMSEA: root mean square error of approximation; 90% CI: 90% confidence interval; RMR: root mean square residual; GFI: goodness of fit index; CFI: comparative fit index; TLI: Tuckler-Lewis Index.