Model | −LL | BIC | p-R^{2} | α | β | θ | Φ |
---|---|---|---|---|---|---|---|
Joint | 3553 | 3734 | 0.44 | 0.53 ± 0.06 | 4.37 ± 0.48 | 0.46 ± 0.10 | 1.43 ± 0.30 |
Decomposed | 2981 | 3162 | 0.53 | 0.72 ± 0.15 | 4.43 ± 0.60 | 0.56 ± 0.11 | 0.12 ± 0.94 |
Random | 6378 | 6560 | — | — | — | — | — |
Shown are negative log-likelihood (−LL), BIC, pseudo-R^{2} (p-R^{2}), and random-effects maximum-likelihood parameter estimates (mean ± SEM across subjects) for the joint and decomposed RL models. The bottom row shows summary statistics for the random (null choice) model in which all joint actions have equal probability.