|  | Left | Right | N | ||||||
---|---|---|---|---|---|---|---|---|---|---|
 |  | β | β | |||||||
 |  | Step 1 | Step 2 | Step 3 | t in step 3 | Step 1 | Step 2 | Step 3 | t in step3 |  |
TD | Age (months) | −0.463* | −0.657* | −0.358 | −1.380 | −0.267 | −0.599 | −0.268 | −0.982 | 33 |
 | Non-verbal performance |  | 0.248 | 0.307 | 1.302 |  | 0.423 | 0.488 | 1.972 |  |
 | Riddles |  |  | −0.521* | −2.681 |  |  | −0.577* | −2.823 |  |
 | R | 0.463 | 0.487 | 0.624 |  | 0.267 | 0.374 | 0.570 |  |  |
 | Adjusted R2 | 0.214 | 0.237 | 0.389 |  | 0.071 | 0.140 | 0.325 |  |  |
 | ΔR2 | 0.189 | 0.187 | 0.326 |  | 0.041 | 0.082 | 0.255 |  |  |
ASD | Age (months) | −0.058 | −0.100 | −0.122 | −0.553 | −0.435* | −0.503* | −0.583* | −3.092 | 30 |
 | Non-verbal performance |  | 0.192 | 0.162 | 0.677 |  | 0.308 | 0.199 | 0.974 |  |
 | Riddles |  |  | 0.058 | 0.218 |  |  | 0.214 | 0.935 |  |
 | R | 0.058 | 0.196 | 0.201 |  | 0.435 | 0.528 | 0.550 |  |  |
 | Adjusted R2 | 0.003 | 0.038 | 0.040 |  | 0.189 | 0.279 | 0.302 |  |  |
 | ΔR2 | 0.000 | 0.000 | 0.000 |  | 0.160 | 0.226 | 0.222 |  |  |