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Table 3 The result of the goodness of fit of the specified path models

From: Relationships between structure, process and outcome to assess quality of integrated chronic disease management in a rural South African setting: applying a structural equation model

Criteria Specified path models
Unidirectional Mediation Reciprocal
Relative Chi square statistic (χ 2/df) 127/52 = 2.44 164/52 = 3.15 145/52 = 2.78
RMSEA value ≤ 0.06 0.064
(90% CI - 0.052–0.077)
0.058
(90% CI - 0.045–0.070)
0.059
(90% CI - 0.047–0.070)
CFI ≥ 0.90 0.915 0.931 0.919
TLI ≥ 0.90 0.892 0.913 0.910
CD close to 1.00 (perfect fit is preferred if CD value = 1.00) 0.911 1.00 0.632
Ranking** 3rd 1st 2nd
  1. Indices with goodness of fit
  2. **The mediation model ranked first because it fulfilled all five criteria (Relative/normed Chi square statistic, RMSEA, CFI, TLI and CD). In addition, it showed a perfect fit based on CD value of 1.00
  3. **The reciprocal model ranked second because it fulfilled four criteria (Relative/normed Chi square statistic, RMSEA, CFI and TLI)
  4. **The unidirectional model ranked third because it fulfilled three criteria (Relative/normed Chi square statistic, CFI and CD)