Table 1.
Fractional logit estimations for reinforcement error rates
| Variable | High incentives |
Low incentives |
Joint regression |
|||
|---|---|---|---|---|---|---|
| β | SE | β | SE | β | SE | |
| FRN (normalized) | 0.531*** | 0.159 | −0.346 | 0.493 | −0.439 | 0.487 |
| SVD | −0.898*** | 0.266 | 0.855*** | 0.310 | 0.283 | 0.228 |
| Incentives (1=High) | 1.139 | 0.951 | ||||
| Incentives X FRN | 1.151** | 0.519 | ||||
| Incentives X SVD | −0.509 | 0.313 | ||||
| Gender (1=Male) | −0.362 | 0.588 | 2.110** | 0.916 | −0.188 | 0.402 |
| Age | −0.261*** | 0.098 | −0.155*** | 0.055 | −0.185*** | 0.067 |
| Mastery | 0.451** | 0.229 | 1.208*** | 0.236 | 0.717*** | 0.150 |
| Knowledge of Probabilities | −0.176 | 0.142 | −0.282** | 0.122 | −0.383*** | 0.100 |
| Statistics Course (1=Yes) | −1.016 | 0.674 | 3.604*** | 0.650 | 0.934* | 0.485 |
| Effort | 0.186 | 0.272 | −1.960*** | 0.401 | −0.798*** | 0.215 |
| Cb | 0.831 | 0.730 | −0.754* | 0.421 | −0.162 | 0.463 |
| Constant | 4.448* | 2.708 | 7.935*** | 2.279 | 6.721*** | 2.057 |
| pseudo-log likelihood | −7.002 | −5.989 | −14.731 | |||
The individual FRN is the normalized FRN after negative feedback. Cb is counterbalance (1 if the winning color was blue). SVD is the subjective (self-reported) valence difference between the winning and the losing colors. Mastery and knowledge of probabilities (self-reported) were measured in a 0–10 scale. Statcourse is a dummy indicating that the participant reported having followed a statistics course. Effort was the self-reported effort invested in the task (0–10). N = 20 for low incentives, N = 19 for high incentives (1 subject dropped due to missing questionnaire data). *P < 0.1. **P < 0.05. ***P < 0.01.