Table 1. ANOVA and coefficient summary of multilevel model of the 2013 data, symbolic token exchange.
| Fixed Effects | Model coefficients | |||||||
|---|---|---|---|---|---|---|---|---|
| Source | χ2 | Df | p < | Source | B | Lower CI | Upper CI | b / rsd |
| Experiment Round (Time) | 3.94 | 1 | 0.048 | Intercept | 0.52 | 0.49 | 0.55 | |
| Group | 50.33 | 1 | 0.001 | Time | 0.02 | 0.01 | 0.03 | 0.08 |
| Equality | 124.81 | 2 | 0.001 | Group | -0.10 | -0.06 | -0.13 | -0.46 |
| Group x Time | 3.63 | 1 | 0.057 | Equality: high vs equal | -0.10 | -0.06 | -0.14 | -0.47 |
| Equality x Time | 18.95 | 2 | 0.001 | Equality: low vs equal | 0.15 | 0.10 | 0.19 | 0.70 |
| Random effects | Time X Group | -0.01 | -0.02 | 0.00 | -0.05 | |||
| Source | Int. (SD) | Slope (SD) | R | Time X Equality_high | 0.00 | -0.01 | 0.02 | 0.02 |
| Time | Game | 0.03* | 0.01* | 0.33 | Time X Equality_low | -0.02 | -0.04 | -0.01 | -0.11 |
| Time | Game | Particip | 0.1*3 | 0.03* | -0.28 | |||||
| Residual | 0.21 | |||||||
Note: CI = 95% confidence interval. rsd = residual standard deviation. Int. = intercept.