Table 3.
Results from hierarchical regression analyses for the relations of numerosity processing and arithmetic computation (simple subtraction and complex subtraction) after controlling for age/gender (setp 1), and general cognitive processes (step 2).
| Predictors | Simple subtraction | Complex subtraction | ||||
|---|---|---|---|---|---|---|
| Step 1 | Step 2 | Step 3 | Step 1 | Step 2 | Step 3 | |
| B (SE) | B (SE) | B (SE) | B (SE) | B (SE) | B (SE) | |
| Age (month) | 0.04 (0.02)* | 0.04 (0.02)* | 0.04 (0.01)* | 0.03 (0.02)* | 0.04 (0.01)* | 0.03 (0.01)* |
| Gender | 1.5 (1.02) | 2.4 (1.0)* | 2.3 (1.0)* | 0.72 (0.90) | 1.9 (0.84)* | 1.7 (0.84)* |
| Choice reaction time | - | −0.02 (0.01)** | −0.03 (0.01)** | - | −0.03 (0.01)*** | −0.03 (0.01)*** |
| Mental rotation | - | 0.13 (0.06)* | 0.11 (0.06)* | - | 0.16 (0.05)** | 0.14 (0.05)** |
| Nonverbal matrices reasoning | - | 0.10 (0.06) | 0.07 (0.06) | - | 0.04 (0.05) | 0.02 (0.05) |
| Numerosity comparison (ACC) | - | - | 0.12 (0.06)* | - | - | 0.12 (0.05)* |
| Numerosity comparison (RTs) | - | - | 0.00 (0.00) | - | - | 0.00 (0.00) |
| R2 =0.038* | ΔR2 =0.113*** | ΔR2 =0.038* | R2 =0.026 | ΔR2 =0.172*** | ΔR2 =0.026* | |
ΔR2 indicates the change in the R Square value.
*
p<0.05;
**
p<0.01;
***
p<0.001.