Table 2.
Professional Fulfillment Index (PFI) reliability estimates, sensitivity to change, and convergent validity with Maslach Burnout Inventory (MBI) scales
| PFI measure | Cronbach’s α | Test-retest reliability | Sensitivity to detect change in sleep-related impairment: correlation | Sensitivity to detect change in sleep-related impairment: AUC (95% CI) | Correlation with closest MBI equivalent |
|---|---|---|---|---|---|
| Work exhaustion | 0.86 | 0.80 | 0.36 | 0.67 (0.60–0.74) | 0.72 (EE) |
| Interpersonal disengagement | 0.92 | 0.71 | 0.32 | 0.64 (0.57–0.72) | 0.59 (DP) |
| Overall burnout scale | 0.92 | 0.80 | 0.37 | 0.68 (0.62–0.76) | 0.71 (EE + DP) |
| Professional fulfillment | 0.91 | 0.82 | 0.28 | 0.62 (0.54–0.70) | 0.46 (PA) |
MBI Scale names: EE = emotional exhaustion, DP = depersonalization, PA = personal accomplishment
All correlations are statistically significant (p < 0.05)