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. 2021 Feb 10;16(2):e0246676. doi: 10.1371/journal.pone.0246676

Table 2. Comparison of measurement models.

Model Factors χ2 df Δχ2 RMSEA CFI TLI SRMR
Baseline model Five factors 3020.006 965 0.050 0.920 0.914 0.064
Model 1 Four factors 5405.203 969 2385.197** 0.073 0.827 0.815 0.112
Model 2 Three factors 6756.895 972 3736.889** 0.083 0.774 0.760 0.096
Model 3 Two factors 9752.729 974 6732.723** 0.102 0.658 0.636 0.110
Model 4 One factor 13665.328 975 10645.322** 0.123 0.505 0.475 0.143

Note: AW = academic workload; SFS = separation from school; FOC = fears of contagion; PS = perceived stress; Two factors = AW+SFS+FOC+PS, Health; Three factors = AW+SFS+PS, FOC, Health; Four factors = AW+PS, SFS, FOC, Health.