Table 4. Stepwise Multiple Regression Analysis of the Variables that were Found to Have a Significant Univariate Relationship with Stroop-words.
| Variable | B | SE B | β | t | p | F | R 2 | R 2 adjusted |
|---|---|---|---|---|---|---|---|---|
| Model 1: demographics | - | - | - | - | <.001 | 22.204 | .217 | .208 |
| Significant predictors | ||||||||
| - Age | -.096 | .022 | -.299 | -4.382 | <.001 | - | - | - |
| − Educational level | .657 | .147 | .304 | 4.457 | <.001 | - | - | - |
| Excluded variables | ||||||||
| - | - | - | - | - | - | - | - | - |
| Model 2: verbal processin speed | - | - | - | - | <.001 | 22.098 | .287 | .274 |
| Significant predictors | ||||||||
| − Span length 2 | -.004 | .002 | -.207 | -2.853 | .005 | - | - | - |
| − Span length 3 | -.002 | .001 | -.208 | -2.664 | .008 | - | - | - |
| − Span length 4 | -.001 | .000 | -.272 | -3.550 | .001 | - | - | - |
| Excluded variables | ||||||||
| − Span length 5 | - | - | -.112 | -1.481 | .140 | - | - | - |
| - | - | - | - | - | - | - | - | - |
| -Model 3: visual processing speed | - | - | - | - | <.001 | 10.807 | .157 | .143 |
| Significant predictors | ||||||||
| − Span length 3 | -.003 | .002 | -.207 | -2.012 | 0.047 | - | - | - |
| − Span length 6 | -.001 | .001 | -.242 | -2.351 | .020 | - | - | - |
| Excluded variables | ||||||||
| − Span length 2 | - | - | -.063 | -.605 | .547 | - | - | - |
| − Span length 4 | - | - | -.082 | -.564 | .574 | - | - | - |
Note. B=unstandardized regression coefficient; SE B=standard error of the coefficient; β=standardized coefficient; R 2=coefficient of determination; −=not applicable; p ≤ .05=significant as indicated in bold