Estimating the subjective value of future rewards: Comparison of adjusting-amount and adjusting-delay procedures

► Do different procedures produce equivalent discounting of delayed rewards? ► If decision-making processes are the same, similar behavior should be observed. ► The adjusting-immediate-amount procedure yielded the most consistent results. ► However, systematic discounting and magnitude effects were observed on all procedures. ► These results provide converging evidence of common decision-making processes.