Table 4. Standard multiple regression analyses with the reading comprehension of utterances as dependent variable and variables of interest at P1 and P2 as predictors (for decoding skills: fluency in pseudoword reading).
| R2 | Predictor variables | β | Proportion of variance accounted by | P |
| P1–P2: 26% | Listening Comprehension P1 | .31 | 7.67% | <.01 |
| Decoding skills P1 | .21 | 5.15% | <.01 | |
| Vocabulary P1 | .09 | 0.73% | .09 | |
| Nonverbal IQ P1 | .09 | 0.94% | .06 | |
| P2–P2: 49% | Listening Comprehension P2 | .25 | 8.89% | <.01 |
| Decoding skills P2 | .52 | 33.99% | <.01 | |
| Vocabulary P2 | .18 | 4.52% | <.01 |