Disentangling choice value and choice conflict in sequential decisions under risk
Fig 5
Model comparison of diffusion decision models (DDMs) based on WAIC (data: Experiment 2).
All the models included here have their drift-rate modulated by the cumulative sum of rewards, while their thresholds and starting-point could be either fixed (not modulated), or modulated by either the decision number or the cumulative sum of rewards. Lower WAICs indicate better fits to data after accounting for model complexity. The bars represent the estimated WAICse. **Best model. *These models do not fit credibly worse than the best model.