Table 2.
Summary of multiple linear regression analyses for variables at Time 1 – Time 4 predicting informal math scores at Time 4. Standardized beta values and associated statistical results are shown for each variable at each time point.
| Time | Variable | std beta | t | p-value |
|---|---|---|---|---|
| Time 1 | ANS precision | .20 | 1.54 | .13 |
| Age | .37 | 2.76 | <.01 | |
| ANS × Age | .05 | 0.41 | .68 | |
| IQ | .21 | 1.95 | .06 | |
| Time 2 | ANS precision | .27 | 2.31 | . 02 |
| Age | .37 | 3.13 | <.01 | |
| ANS × Age | −.05 | −0.45 | .65 | |
| IQ | .21 | 2.09 | .04 | |
| Time 3 | ANS precision | .28 | 2.59 | .01 |
| Age | .43 | 4.11 | <.001 | |
| ANS × Age | .01 | 0.07 | .95 | |
| IQ | .15 | 1.46 | .15 | |
| Time 4 | ANS precision | .34 | 3.67 | <.001 |
| Age | .51 | 5.45 | <.001 | |
| ANS × Age | .15 | 1.67 | .10 | |
| IQ | .16 | 1.70 | .09 |