Table 4.
Hierarchical Regression Analysis Predicting Coding Scores
| Predictor | β | ΔR2 | p | Model R2 | |
|---|---|---|---|---|---|
| Base Model | .486 | ||||
| Sex | .226 | .051 | .097 | ||
| Coding Copy | .572 | .295 | .000 | ||
| CPRS-R Scale N | -.387 | .146 | .001 | ||
| GAI | -.010 | .000 | .937 | ||
|
| |||||
| Verbal Attention/Span | .094 | .016 | .594 | ||
| Digit Span Forward | .320 | .011 | |||
| Recalling Sentences | -.228 | .061 | |||
| Verbal Working Memory, controlling for verbal span | .076 | .025 | .633 | ||
| Letter Number Seq. | .384 | .007 | |||
| Digit Span Backward | -.121 | .338 | |||
| Spatial Working Memory, controlling for spatial span | .115 | .012 | .599 | ||
| CANTAB SWM | .086 | .477 | |||
| Spatial Span Backward | .434 | .003 | |||
| Reaction Time | .016 | .819 | .450 | ||
| Simple Reaction Time | .067 | .734 | |||
| GNG Fixed MRT | -.162 | .484 | |||
| GNG Jittered MRT | .169 | .468 | |||
| Naming Automaticity | .022 | .603 | .508 | ||
| RAN Colors | -.085 | .584 | |||
| RAN Letters | -.121 | .546 | |||
| RAN Numbers | .253 | .201 | |||
| Intra-subject Variability | .009 | .722 | .467 | ||
| GNG Fixed Variability | -.027 | .853 | |||
| GNG Jittered Variability | -.085 | .532 | |||
| Inhibition | .005 | .852 | .463 | ||
| GNG Fixed Commissions | -.021 | .936 | |||
| GNG Jittered Commissions | -.052 | .839 | |||
Note. In each regression, Sex, Coding Copy, CPRS N Score, and GAI were entered first, followed by the predictors of interest in the final block.