Table 5.
GEE models of feedback effects on average number of clicks (EEfRT)
| Effect | β | se | χ² | p |
|---|---|---|---|---|
| Model 13 | ||||
| Feedback | 2.27 | 0.35 | 41.54 | <.001 |
| Model 14 | ||||
| Feedback | 2.15 | 0.53 | 16.25 | <.001 |
| Substance | −6.97 | 2.87 | 5.90 | .015 |
| Substance × Probability 50% | 3.94 | 2.40 | 2.69 | .101 |
| Substance × Probability 88% | 4.17 | 2.69 | 2.40 | .121 |
| Substance × Feedback | 0.24 | 0.80 | 0.09 | .762 |
| Model 15 | ||||
| Feedback | 2.27 | 0.35 | 42.49 | <.001 |
| Extraversion | 3.43 | 1.59 | 4.67 | .031 |
| Extraversion × Probability 50% | −3.14 | 1.47 | 4.56 | .033 |
| Extraversion × Probability 88% | −3.01 | 1.55 | 3.79 | .051 |
| Extraversion × Feedback | 0.57 | 0.36 | 2.50 | .114 |
Note. All models included probability (categorical), reward magnitude, trial number, block, hand as within-subjects variables, and MaxMot-L and MaxMot-R as between subject variables; χ² = Wald chi-square; β = regression coefficient; significant effects in bold.
a
Reference category: 12% probability.