Table 4.
Model Fit Statistics
| Model | χ 2 (df), p value | Δχ 2 (df)2, p value | RMSEA (90% CI) | CFI | TLI |
|---|---|---|---|---|---|
| EOL versus non-EOL | |||||
| Configural invariance (factor structure) | 129.786 (38), <.0001 | — | .051 (.042, .061) | .963 | .946 |
| Metric invariance (factor loadings) | 129.296 (44), <.0001 | 9.373 (6), .154 | .046 (.037, .055) | .966 | .956 |
| Scalar invariance (item thresholds) | 152.521 (58), <.0001 | 35.147 (14), .0014 | .042 (.034, .050) | .962 | .963 |
| Partial scalar invariance | 141.230 (55), <.0001 | 19.352 (11), .06 | .041 (.033, .050) | .965 | .965 |
| EOL dementia versus EOL non-dementia | |||||
| Configural invariance (factor structure) | 41.67 (38), .31 | — | .03 (.000, .068) | 1.0 | 1.0 |
| Metric invariance (factor loadings) | 48.061 (44), .31 | 7.178 (6), .305 | .026 (.000, .065) | 1.0 | 1.0 |
| Scalar invariance (item thresholds) | 69.29 (58), .15 | 25.33 (14), .032 | .038 (.000, .068) | 1.0 | 1.0 |
| Partial scalar invariance | 64.64 (57), .23 | 18.86 (13), .13 | .031 (.000, .064) | .99 | .99 |
Notes: Δχ 2 = change in chi-square; ΔCFI = change in CFI value; CFI = comparative fit index; CI = confidence interval; EOL = end-of-life; RMSEA = root mean square error of approximation; TLI = Tucker–Lewis index.