Table 2.

Estimated parameter values.

Model	Percentile (%)	αL	β	w	π	ρ	λ	αF	μ
P	25	0.98	3.34	0.70	−0.45	−0.33	0.17	–	–
	50	1.00	4.31	0.90	–0.16	–0.15	0.97	–	–
	75	1.00	5.39	1.00	0.24	−0.04	1.00	–	–
LA	25	1.00	3.19	0.71	−0.42	−0.33	–	–	–
	50	1.00	4.06	0.87	–0.15	–0.14	–	–	–
	75	1.00	5.37	1.00	0.26	−0.05	–	–	–
P-F05	25	0.86	5.37	0.49	0.16	−0.31	0.88	0.21	Fixed (0.5)
	50	1.00	7.59	0.67	0.40	–0.18	1.00	0.30	Fixed (0.5)
	75	1.00	10.53	0.74	0.61	−0.06	1.00	0.49	Fixed (0.5)
LA-F05	25	0.88	5.69	0.43	0.21	−0.32	–	0.23	Fixed (0.5)
	50	0.97	7.71	0.57	0.45	–0.17	–	0.30	Fixed (0.5)
	75	1.00	10.43	0.76	0.62	−0.04	–	0.52	Fixed (0.5)
P-FD	25	0.84	5.24	0.51	0.16	−0.32	0.89	0.21	0.46
	50	1.00	8.28	0.64	0.52	–0.17	1.00	0.28	0.53
	75	1.00	10.09	0.75	0.95	−0.06	1.00	0.45	0.62
LA-FD	25	0.84	5.30	0.44	0.16	−0.32	–	0.23	0.47
	50	0.91	8.43	0.58	0.63	–0.16	–	0.27	0.52
	75	1.00	11.02	0.80	1.00	−0.06	–	0.47	0.62

The best-fitting parameter values are shown as the median and 25th and 75th percentiles across participants. The models differ regarding the basic model with parallel (P) or parsimonious learning-rate adjustment (LA). The models also differ regarding their forgetting-process assumptions: no forgetting, forgetting with a fixed default value (F05), or forgetting with a free default value parameter (FD). Median values are written in bold.