Table 3. Hierarchical regression models on depression.
| Variables | Model 1 | Model 2 | Model 3 | Model 4 | ||||
|---|---|---|---|---|---|---|---|---|
| Beta | T value | Beta | T value | Beta | T value | Beta | T value | |
| Age | -.34 | -6.17** | -.35 | -5.83** | -.37 | -5.91** | -.34 | -5.69** |
| Male | -.29 | -4.65** | -.29 | -4.91** | -.28 | -4.62** | -.26 | -4.35** |
| Married | -.24 | -3.70** | -.21 | -3.33** | -.20 | -3.06** | -.21 | -3.21** |
| Education | .03 | .54 | .01 | .22 | .06 | 1.11 | .07 | 1.24 |
| IADL | -.14 | -2.73** | -.11 | -2.20* | -.49 | -2.09* | ||
| Cognitive Function | -.16 | -2.38* | -.43 | -2.32* | ||||
| IADL x Cognitive Function | .48 | -1.63* | ||||||
| R2 | .27 | .29 | .31 | .33 | ||||
| R2 change | .02** | .02** | .01* | |||||
| Adjusted R2 | .24 | .27 | .29 | .31 | ||||
| F | 20.04** | 17.16** | 14.60** | 12.46** | ||||
* p <.05.
** p <.01.
Gender: Female = 0, Male = 1. Marital Status: Single = 0, Married = 1