| Analysis of variance | |||||
| Source | DF | Sum of squares | Mean square | F-value | Pr. > F |
| Model | 3 | 4046 | 1348 | 6.07 | 0.0005 |
| Error | 388 | 86,241 | 222 |
| |
| Corrected total | 391 | 90,288 |
| ||
|
| R-square | 0.0448 | |||
| Adj. R-sq. | 0.0374 | ||||
| Parameter estimates | |||||
| Variable | DF | Parameter estimate | Standard error | t-value | Pr. > |t| |
| Intercept | 1 | 29.57 | 6.15 | 4.81 | <0.0001 |
| Future equivalent | 1 | −2 | 0.68 | −2.96 | 0.0033 |
| Age | 1 | 0.36 | 0.15 | 2.41 | 0.0165 |
| Handedness | 1 | −4.31 | 2.24 | −1.93 | 0.0549 |