Table 4. Moderated Regression Results Predicting WIAT-III Reading Comprehension (n = 187).
| Stepl | Step 2 | 95% Confidence Interval (Step2) | |||||||
|---|---|---|---|---|---|---|---|---|---|
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| Variable | B | SE | β | B | SE | β | Lower Bound | Upper Bound | Effect Sizea |
| Constant | 9.99 | 10.22 | −3.56 | 15.11 | −33.38 | 26.25 | |||
| Gender | 2.80 | 1.39 | .12* | 12.81 | 8.75 | .55 | -4.45 | 30.09 | .01 |
| IQ Composite | .23 | .06 | .23*** | .21 | .06 | .21** | .09 | .34 | .06 |
| Basic Reading Composite | .58 | .11 | 35*** | .58 | .11 | .36*** | .37 | .80 | .13 |
| Elision | .74 | .39 | .13 | .73 | .38 | .13 | −.03 | 1.49 | .01 |
| Rapid Letter Naming | .87 | .36 | .15** | .86 | .36 | .15* | .15 | 1.58 | .03 |
| Attention Problems | .01 | .08 | .01 | .02 | .08 | .02 | −.14 | .18 | .00 |
| Internalizing Problems | −.03 | .07 | −.03 | −.23 | .21 | −.22 | −.66 | .19 | .00 |
| Externalizing Problems | −.11 | .07 | −.11 | .31 | .21 | .30 | −.11 | .73 | .01 |
| Gender × Internalizing | .15 | .15 | .41 | −.15 | .46 | .00 | |||
| Gender × Externalizing | −.31 | .14 | −.89* | −.60 | −.02 | .02 | |||
| ΔF-score (df1, df2) | 2.32(2, 176) | ||||||||
| ΔR2 | .01 | ||||||||
| F-score (df1, df2) | 14.19(8,186)**,* | 11.98(10,186)*** | |||||||
| R2 | .38 | .40 | |||||||
| Adjusted R2 | .36 | .37 | |||||||
Note: WIAT-III = Wechsler Individual Achievement Test, Third Edition. aSquaredsemipartial correlation (sr2).
*
p<.05;
**
p<.01;
***
p<.001.