Table 3 Confirmatory factor analysis statistics PROMIS General Life Satisfaction 5a
From: PROMIS® General Life Satisfaction scale: construct validity in musculoskeletal pain patients
Statistic | Recommended value | Model |
|---|---|---|
χ2 | NA | 33.77 |
χ2 p-value | > 0.05 | < 0.01 |
df | NA | 5 |
χ2/df | < or = 2 | 6.75 |
Comparative fit index (CFI) | > or = 0.9 | 0.998 |
Tucker-Lewis index (TLI) | > or = 0.9 | 0.997 |
Root mean square residual (SRMR) | As close to 0 as possible | 0.034 |
Root mean square error of approximation (RMSEA) | < or = 0.08 | 0.118 (CI 0.083–0.158) |