Table 4.
Multiple Linear Regressions with Visual-Spatial WM – Final Model
| Academic Achievement Tests | β | t | p value |
|---|---|---|---|
| Word Reading | |||
| SES | 0.303 | 4.019 | <0.001 |
| Spatial Span | 0.303 | 3.852 | <0.001 |
| K-SADS Inattentive Symptom Severity | −0.054 | −0.459 | 0.647 |
| K-SADS Hyperactive/Impulsive Symptom Severity | 0.020 | 0.177 | 0.860 |
| Spatial Span x K-SADS Inattentive Symptom Severity | 0.016 | 0.145 | 0.885 |
| Spatial Span x K-SADS Hyperactive/Impulsive Symptom Severity | −0.011 | −0.102 | 0.919 |
| Reading Comprehension | |||
| SES | 0.346 | 4.752 | <0.001 |
| Spatial Span | 0.228 | 3.033 | 0.003 |
| K-SADS Inattentive Symptom Severity | −0.141 | −1.261 | 0.209 |
| K-SADS Hyperactive/Impulsive Symptom Severity | 0.053 | 0.485 | 0.629 |
| Spatial Span x K-SADS Inattentive Symptom Severity | −0.114 | −1.076 | 0.284 |
| Spatial Span x K-SADS Hyperactive/Impulsive Symptom Severity | 0.264 | 2.531 | 0.012 |
| Pseudoword Decoding | |||
| SES | 0.269 | 3.447 | 0.001 |
| Spatial Span | 0.221 | 2.709 | 0.008 |
| K-SADS Inattentive Symptom Severity | −0.115 | −0.953 | 0.342 |
| K-SADS Hyperactive/Impulsive Symptom Severity | 0.034 | 0.292 | 0.771 |
| Spatial Span x K-SADS Inattentive Symptom Severity | 0.013 | 0.113 | 0.910 |
| Spatial Span x K-SADS Hyperactive/Impulsive Symptom Severity | −0.023 | −0.206 | 0.837 |
| Numerical Operations | |||
| SES | 0.296 | 4.210 | <0.001 |
| Spatial Span | 0.420 | 5.735 | <0.001 |
| K-SADS Inattentive Symptom Severity | −0.132 | −1.216 | 0.226 |
| K-SADS Hyperactive/Impulsive Symptom Severity | 0.143 | 1.355 | 0.177 |
| Spatial Span x K-SADS Inattentive Symptom Severity | −0.090 | −0.869 | 0.386 |
| Spatial Span x K-SADS Hyperactive/Impulsive Symptom Severity | 0.166 | 1.623 | 0.107 |
| Spelling | |||
| SES | 0.243 | 3.162 | 0.002 |
| Spatial Span | 0.274 | 3.410 | 0.001 |
| K-SADS Inattentive Symptom Severity | −0.219 | −1.858 | 0.065 |
| K-SADS Hyperactive/Impulsive Symptom Severity | 0.159 | 1.377 | 0.171 |
| Spatial Span x K-SADS Inattentive Symptom Severity | −0.039 | −0.352 | 0.726 |
| Spatial Span x K-SADS Hyperactive/Impulsive Symptom Severity | 0.082 | 0.739 | 0.461 |
| Teacher Ratings | |||
| Academic Functioning | |||
| SES | −0.226 | −2.819 | 0.006 |
| Spatial Span | −0.257 | −2.862 | 0.005 |
| K-SADS Inattentive Symptom Severity | 0.440 | 3.571 | 0.001 |
| K-SADS Hyperactive/Impulsive Symptom Severity | −0.162 | −1.340 | 0.183 |
| Spatial Span x K-SADS Inattentive Symptom Severity | −0.054 | −0.466 | 0.642 |
| Spatial Span x K-SADS Hyperactive/Impulsive Symptom Severity | 0.027 | 0.236 | 0.814 |
| Behavioral Functioning | |||
| SES | −0.054 | −0.697 | 0.487 |
| Spatial Span | 0.008 | 0.093 | 0.926 |
| K-SADS Inattentive Symptom Severity | 0.357 | 2.973 | 0.004 |
| K-SADS Hyperactive/Impulsive Symptom Severity | 0.264 | 2.240 | 0.027 |
| Spatial Span x K-SADS Inattentive Symptom Severity | 0.001 | 0.009 | 0.993 |
| Spatial Span x K-SADS Hyperactive/Impulsive Symptom Severity | −0.006 | −0.058 | 0.954 |
| Clinician Ratings of Children’s Global Assessment Scale | |||
| SES | 0.074 | 1.750 | 0.082 |
| Spatial Span | 0.034 | 0.783 | 0.435 |
| K-SADS Inattentive Symptom Severity | −0.624 | −9.603 | <0.001 |
| K-SADS Hyperactive/Impulsive Symptom Severity | −0.255 | −4.012 | <0.001 |
| Spatial Span x K-SADS Inattentive Symptom Severity | −0.017 | −0.273 | 0.785 |
| Spatial Span x K-SADS Hyperactive/Impulsive Symptom Severity | 0.102 | 1.665 | 0.098 |
Bold denotes significant predictor variables