TABLE 4.
χ2 (df) | p | SRMR | CFI | TLI | AIC | RMSEA [95% CI] | |
Neuropsychological consensus model | |||||||
1. Initial model | 140.97 (65) | <0.001 | 0.068 | 0.924 | 0.893 | 8389.95 | 0.070 [0.054, 0.086] |
2. Covariance between OCT and SCTa | 99.32 (64) | 0.003 | 0.056 | 0.965 | 0.950 | 8350.30 | 0.048 [0.028, 0.066] |
3. Executive functioning and processing speed mergeda | 109.49 (68) | 0.001 | 0.057 | 0.958 | 0.944 | 8352.48 | 0.051 [0.032, 0.068] |
Cattell-Horn Carroll model | |||||||
1. Initial model | 138.92 (65) | <0.001 | 0.058 | 0.926 | 0.896 | 8387.90 | 0.069 [0.053, 0.085] |
2. Covariance between OCT and SCTa | 92.01 (64) | 0.012 | 0.044 | 0.972 | 0.960 | 8343 | 0.043 [0.021, 0.061] |
χ2, chi square; df, degrees of freedom; CFI, comparative fit index; AIC, Akaike information criterion; RMSEA, root mean square error of approximation; OCT, O-Cancellation Test; SCT, Star-Cancellation Test; TMT, Trail-Making Test; CHC, Cattell-Horn-Carroll; Gr, Retrieval fluency.aExploratory model change.