. Author manuscript; available in PMC: 2024 Feb 16.

Published in final edited form as: Learn Behav. 2023 Mar 13;51(4):355–391. doi: 10.3758/s13420-023-00577-1

Table 8.

Parameter values used to calculate the functions shown in Fig. 8 for the quasi-hyperbolic (QUASI) and double-exponential (DBEXP) in comparison to the hyperbolic (HYP)

Model	Shallow	Steep

HYP	$k = .10$	$k = .80$
QUASI	$k_{1} = .74$	$k_{1} = .30$
	$k_{2} = .96$	$k_{2} = .92$
DBEXP	$ω = .56$	$ω = .18$
	$k_{1} = .97$	$k_{1} = .95$
	$k_{2} = .83$	$k_{2} = .59$

Separate parameters are shown for the shallow discounting curves in the top panel and the steep curves. See Table 7 for parameter definitions