Table 2.
Invariance of ASA-27 across gender and time
| Model | Invariance | df | CFI | TLI | RMSEA | Δχ2 a | Δdf | p | Freed parameters | |
|---|---|---|---|---|---|---|---|---|---|---|
| Gender | Baseline (Configural) | Full | 550 | .971 | .969 | .041 | -- | -- | -- | -- |
| Loading (Metric/Weak) | Partial | 571 | .972 | .971 | .039 | 31.09 | 21 | .07 | λ: 1, 12, 19 | |
| Threshold (Scalar/Strong) | Partial | 618 | .975 | .976 | .036 | 63.36 | 47 | .06 | λ: 1, 12, 19; τ: 17-1, 25-1 | |
| Unique Factor (Strict) | Partial | 642 | .979 | .981 | .032 | 32.73 | 24 | .11 | λ: 1, 12, 19; τ: 17-1, 25-1; δ: 19 | |
| Time | Baseline | Full | 1149 | .962 | .960 | .026 | -- | -- | -- | -- |
| Loading | Partial | 1172 | .962 | .960 | .026 | 33.87 | 23 | .07 | λ: 19 | |
| Threshold | Partial | 1218 | .963 | .963 | .025 | 60.81 | 46 | .07 | λ: 19 τ: 1-1, 1-2, 18-1 |
|
| Unique Factor | Partial | 1241 | .965 | .965 | .024 | 35.17 | 23 | .05 | λ: 19; τ: 1-1, 1-2, 18-1; δ: 1, 3 |
Notes:
a
DIFFTEST. λ (lambda)=loading. τ (tau)=threshold. δ (delta)=residual. Analysis excludes items 21 and 26 due to local dependence with other items.