Table 3.
Hierarchical regression models of the relationship between neurocognitive domains, demographic variables, and IQ (N = 250).
| Step 1 |
Step 2 |
||||
|---|---|---|---|---|---|
|
F(df 3,241) |
Adj. R2 |
F(df 4,240) |
Adj. R2 |
||
| Gender (β) | Age (β) | Educ. (β) | IQ (β) | ||
| Composite score | 23.02*** | .21 | 61.72*** | .50 | |
| .01 | − .41*** | .21*** | .56*** | ||
| Speed of Processing | 13.54*** | .13 | 25.77*** | .29 | |
| − .11 | − .34*** | .10 | .42*** | ||
| Attention/Vigilance | 9.32*** | .09 | 10.98*** | .14 | |
| .19* | − .21** | .18* | .24*** | ||
| Working Memory | 17.15*** | .17 | 37.59*** | .38 | |
| .05 | − .36*** | .19* | .48*** | ||
| Verbal Learning | 9.92*** | .10 | 21.99*** | .26 | |
| − .13 | − .15 | .23*** | .42*** | ||
| Visual Learning | 12.37*** | .12 | 37.28*** | .37 | |
| .05 | − .31*** | .17* | .53*** | ||
| Reasoning/Probl. Solving | 22.87*** | .21 | 28.58*** | .31 | |
| .23*** | − .39*** | .15 | .34*** | ||
| Social Cognition | 6.68*** | .07 | 5.86*** | .07 | |
| − .26*** | − .12 | − .05 | .12 | ||
Step 2: F and adjusted R2 represent the full model with gender, age, education, and IQ as independent variables.
*
p < .05, Bonferroni corrected.
**
p < .01, Bonferroni corrected.
***
p < .001, Bonferroni corrected.