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Table 2 Goodness of Fit Criteria

From: Assessing exposure to war-related traumatic events in older Vietnamese war survivors

  Step Purpose Criteria
GOF2
 KMO 2 Sampling adequacy ≥ 0.7
 RMSEA 3 General fit – model parsimony ≤ 0.08 [44, 54]
 SRMR 3 Diff. between sample & model ≤ 0.08 [55]
 CFI3 3 General fit – Comparative fit ≥ 0.95 [54, 55]
Appropriateness
Reliability
  Omega 3 Internal reliability ≥ 0.7 [56]
  CR 3 Composite reliability [57]
Validity
  AVE 3 Convergent validity ≥ 0.5 or > CR [58, 59]
  SC 3 Discriminant validity AVE > SC [57]
  Corr. with PTSD 3 Construct validity4 p ≤ 0.05 [50, 51, 60]
  1. 1We retained items with loadings between 0.3 and 0.4 when there were strong theoretical reasons for keeping the item [61]
  2. 2 Chi-square statistics are not reported as they are not applicable with binary data [44]
  3. 3 The Tucker-Lewis index (TLI) is not shown as it is prone to bias and model misspecification with binary data [54]
  4. 4 All of the war-related events included, with the exception of inhospitable conditions, meet Criterion A’s definition of traumatic events, demonstrating content validity. Correlations further show that the events we have assumed to be traumatic are, in fact, associated with trauma, demonstrating construct validity
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