Table 3.
Regression of the response time (sec)
| Source | SS | df | MS |
|---|---|---|---|
| Model | 133.61820 | 2 | 66.8091033 |
| Residual | 1280.02093 | 902 | 1.41909195 |
| Total | 1413.63914 | 904 | 1.563760 |
| sec | Coefficient | SE | t | P > |t| | 95% confidence interval | |
|---|---|---|---|---|---|---|
| gain | −0.398263 | 0.0792085 | −5.028 | 0.000 | −0.5537179 | −0.2428089 |
| cert | −0.662035 | 0.0793579 | −8.342 | 0.000 | −0.8177834 | −0.5062883 |
| cons | 3.469154 | 0.0713755 | 48.109 | 0.000 | 3.3305120 | 3.607795 |
The variables describing the effects of certainty/uncertainty (cert) and gain/loss (gain) both have significant coefficients. No. of observations = 905; F(3,901) = 47.08, prob. > F = 0.0000; R2 = 0.0945; adjusted R2 = 0.0925; root MSE = 1.1913.