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Indices of fit for initial and final PSQI single-factor models.
| Model | χ 2 (df) | χ 2/df | RMSEA | CFI | AIC |
|---|---|---|---|---|---|
| Initial model | 196.02 (14) | 14 | 0.16 | 0.77 | 238.02 |
| Final model | 42.03 (12) | 3.50 | 0.07 | 0.96 | 88.03 |
Pittsburgh Sleep Quality Index, chi-squared and degrees of freedom, chi-square and its ratio with degrees of freedom, Root Mean Square Error of Approximation, Comparative Fit Index, and Akaike Information Criterion.
