Table 2.
Hierarchical multiple regression analysis predicting ADHD symptoms.
| Variables by step | ADHD total score | Inattentive score | YASR attention problems | |||
|---|---|---|---|---|---|---|
| R2 | β (t) | R2 | β (t) | R2 | β (t) | |
| Step 1 (df 3/245) | 0.004 | 0.02 | −0.004 | |||
| WISC-R | −0.004 (−0.04) | −0.09 (−1.01) | 0.03 (0.30) | |||
| RCPM | 0.02 (0.23) | 0.05 (0.62) | −0.03 (−0.33) | |||
| Birth weight group | 0.06 (0.87) | 0.09 (1.28) | 0.09 (1.33) | |||
| Step 2 (df 4/244) | 0.02* | 0.04* | 0.006 | |||
| WISC-R | 0.004 (0.05) | −0.08 (−0.91) | 0.03 (0.38) | |||
| RCPM | 0.14 (1.36) | 0.19 (1.84) | 0.08 (0.75) | |||
| Birth weight group | 0.06 (0.83) | 0.08 (1.24) | 0.09 (1.29) | |||
| Birth weight group × RCPM | −0.18 (−2.13)* | −0.21 (−2.39)* | −0.16 (−1.86) | |||
*
p < 0.05.