FACIT-Fatigue | RMSEA (90% CI) | SRMR | CFI | ω | ωH | ECV |
---|
Single factor modeling |
Symptom subscale | 0.068 (0.005–0.123) | 0.014 | 0.998 | 0.903 | | |
Impact subscale | 0.166 (0.143–0.190) | 0.061 | 0.961 | 0.907 | | |
Total scale | 0.152 (0.139–0.165) | 0.066 | 0.946 | 0.943 | | |
Bifactor modeling | 0.120 (0.105–0.135) | 0.044 | 0.973 | 0.954 | 0.905 | 0.819 |
- Abbreviations: CI confidence interval, CFI comparative fit index, ECV explained common variance, FACIT-Fatigue Functional Assessment of Chronic Illness Therapy-Fatigue scale, RMSEA root mean square error of approximation, SRMR standardized root mean square residual, ω omega, ωH omega hierarchical
- Standard cutoff values: RMSEA < 0.06; SRMR < 0.08; CFI > 0.95 [17,18,19,20]