Table 2. Linear regression models predicting arithmetic performance from scores on the dot comparison and inhibition tasks in Experiment 2.
| Model | Step | Variable | β | ΔR2 | Sig. ΔR2 |
|---|---|---|---|---|---|
| 1 | 1 | Dot comparison w | -.35* | .12 | .003 |
| 2 | Dot comparison w | -.16 | .16 | .001 | |
| NEPSY-II Inhibition: naming score | .14 | ||||
| NEPSY-II Inhibition: inhibition score | .37* | ||||
| 2 | 1 | NEPSY-II Inhibition: naming score | .18 | .26 | < .001 |
| NEPSY-II Inhibition: inhibition score | .40** | ||||
| 2 | NEPSY-II Inhibition: naming score | .14 | .02 | .172 | |
| NEPSY-II Inhibition: inhibition score | .37* | ||||
| Dot comparison w | -.16 |
DV = WIAT numerical operations raw score; significance of β weights: *p < .05, **p < .001