Fig 2. Results of Experiment 2.

(a) Median delay and probability trade-off values obtained in the calibration task in the domain of gains or losses; error bars represent bootstrapped 95% confidence intervals (CI) of the median. (b) Pairwise comparisons of model RMSE, derived from the difference between the observed and predicted indifference points values at each delay and odds against combination, in the domain of gains or losses for each model and participant. Numbers on the right of the panels represent mean ranks of RMSE. The higher the rank, the lesser was the spread of prediction errors in fits of given model (lower RMSE). (c) Values predicted by the three-parameter multiplicative model with the amount as well as the odds against and delay of the outcome scaled (MULTI3, Eq 10) as a function of outcome delay and odds against in gains or losses. Used were median parameter estimates for the MULTI3 model, which were: k = 0.02, h = 5.93, s = 0.61 in the domain of gains and k = 0.03, h = 10.10, s = 0.31.