Table 5.
Nested tests of fit for models with speed (top panel) or syllable span (bottom panel) and each of the outcome factor scores testing parameter differences between experimental and active control groups.
| -2LL | df | Δ2LL/Δ df | AIC | RMSEA (90% CI) | |
|---|---|---|---|---|---|
| MODELS WITH SPEED | |||||
| RBANS List Memory | |||||
| Model 1 | −8243 | 14 | – | 16515 | 0.28 (0.24–0.31) |
| Model 2 | −8175 | 16 | 68/2 | 16382 | 0.21 (0.17–0.24) |
| Model 3 | −8125 | 21 | 50/5 | 16292 | 0.13 (0.09–0.18) |
| Model 4a | −8107 | 23 | 19/2 | 16260 | 0.00 (00–0.00) |
| RAVLT List Memory | |||||
| Model 1 | −8726 | 14 | – | 17481 | 0.28 (0.25–0.31) |
| Model 2 | −8656 | 16 | 70/2 | 17344 | 0.21 (0.18–0.24) |
| Model 3 | −8605 | 21 | 51/5 | 17252 | 0.14 (0.10–0.18) |
| Model 4a | −8587 | 23 | 18/2 | 17220 | 0.00 (0.00–0.06) |
| RBANS Story Memory | |||||
| Model 1 | −7925 | 14 | – | 15878 | 0.28 (0.25–0.30) |
| Model 2 | −7856 | 16 | 69/2 | 15744 | 0.20 (0.17–0.24) |
| Model 3 | −7808 | 21 | 48/5 | 15659 | 0.14 (0.09–0.18) |
| Model 4a | −7790 | 23 | 18/2 | 15627 | 0.00 (0.00–0.06) |
| RBMT Story Memory | |||||
| Model 1 | −8152 | 14 | – | 16333 | 0.28 (0.25–0.30) |
| Model 2 | −8084 | 16 | 68/2 | 16200 | 0.21 (0.17–0.24) |
| Model 3 | −8037 | 21 | 47/5 | 16115 | 0.14 (0.10–0.18) |
| Model 4a | −8019 | 23 | 18/2 | 16083 | 0.00 (0.00–0.07) |
| WMS Working Memory | |||||
| Model 1 | −7607 | 14 | – | 15243 | 0.28 (0.25–0.30) |
| Model 2 | −7534 | 16 | 73/2 | 15101 | 0.20 (0.17–0.23) |
| Model 3 | −7492 | 21 | 42/5 | 15026 | 0.15 (0.11–0.19) |
| Model 4a | −7474 | 23 | 18/2 | 14993 | 0.03 (0.00–0.10) |
| MODELS WITH SYLLABLE SPAN | |||||
| RBANS List Memory | |||||
| Model 1 | −3630 | 14 | – | 7288 | 0.18 (0.15–0.21) |
| Model 2a | −3573 | 16 | 57/2 | 7179 | 0.03 (0.00–0.07) |
| Model 3 | −3569 | 21 | 4/5 | 7180 | 0.00 (0.00–0.07) |
| Model 4 | −3567 | 23 | 2/2 | 7180 | 0.00 (0.00–0.05) |
| RAVLT List Memory | |||||
| Model 1 | −4100 | 14 | – | 8229 | 0.19 (0.16–0.22) |
| Model 2 | −4043 | 16 | 57/2 | 8118 | 0.05 (0.00–0.09) |
| Model 3a | −4036 | 21 | 7/5 | 8115 | 0.01 (0.00–0.08) |
| Model 4 | −4035 | 23 | 1/2 | 8116 | 0.00 (0.00–0.05) |
| RBANS Story Memory | |||||
| Model 1 | −3311 | 14 | – | 6650 | 0.19 (0.16–22) |
| Model 2a | −3252 | 16 | 59/2 | 6536 | 0.05 (0.00–0.09) |
| Model 3 | −3247 | 21 | 5/5 | 6536 | 0.01 (0.00–0.08) |
| Model 4 | −3244 | 23 | 3/2 | 6536 | 0.00 (0.00–0.07) |
| RBMT Story Memory | |||||
| Model 1 | −3555 | 14 | – | 7140 | 0.18 (0.16–0.21) |
| Model 2 | −3500 | 16 | 45/2 | 7033 | 0.05 (0.00–0.09) |
| Model 3a | −3495 | 21 | 5/5 | 7031 | 0.01 (0.00–0.08) |
| Model 4 | −3493 | 23 | 2/2 | 7032 | 0.00 (0.00–0.07) |
| WMS Working Memory | |||||
| Model 1 | −2884 | 14 | – | 5798 | 0.20 (0.17–0.23) |
| Model 2 | −2824 | 16 | 60/2 | 5680 | 0.07 (0.04–0.08) |
| Model 3a | −2814 | 21 | 10/5 | 5670 | 0.00 (0.00–0.07) |
| Model 4 | −2813 | 23 | 1/2 | 5672 | 0.00 (0.00–0.08) |
Model 1, Fully invariant; Model 2, Model 1 + different latent intercepts; Model 3, Model 2 + different regressions; Model 4, Model 3 + different posttest variances.
a
Model selected as the best-fitting model. CFI = 1 for all best-fitting models.