Table 3.
Results of regressing log response allocation (averaged over the final three blocks of each session) on Lag 0 log immediacy, magnitude and probability ratios from Experiment 2. Sensitivity coefficients for immediacy, magnitude and probability are the unstandardized weights obtained prior to the addition of any interaction term. IxM, IxP, MxSP, and IxMxP refer to the interactions and R2inc to the increment in R2 when the interaction value was applied.
| Pigeon | Immediacy | Magnitude | Probability | Intercept | R2 | Interaction |
||
| IXM | R2inc | IXP | ||||||
| 191 | 0.75*** | 1.22*** | 1.31*** | 0.22*** | 0.75 | 0.39 | 0.00 | −0.08 |
| 192 | 1.21*** | 0.99*** | 1.66*** | −0.13** | 0.73 | 0.09 | 0.00 | 0.49 |
| 193 | 1.87*** | 1.32*** | 1.86*** | −0.06 | 0.72 | −0.73 | 0.00 | 0.14 |
| 194 | 1.59*** | 1.76*** | 1.86*** | −0.07 | 0.81 | −0.25 | 0.00 | −0.39 |
| Interaction | ||||
| R2inc | MXP | R2inc | IXMXP | R2inc |
| 0.00 | −0.19 | 0.00 | −2.84* | 0.01 |
| 0.00 | 0.55 | 0.00 | −3.58* | 0.02 |
| 0.00 | 0.74 | 0.00 | −9.82*** | 0.07 |
| 0.00 | 0.11 | 0.00 | 1.03*** | 0.11 |
* p < 0.05, ** p < 0.01, *** p < 0.001