Table 1.

Criterion delays and decline rates in Experiments 1–4 and accuracies in Experiments 1 and 4.

Stage of testing	Specifics	R1	R2	R3	R4	R5	R6	R7	R8	R9	Mean
Experiment 1	Criterion delay (s)	0	*60	0	0	60	*90	30	90	0
	Forced accuracy	.55	.58	.43	.6	.45	.65	.5	.5	.5	.52
	Chosen accuracy	.51	.58	.63	.7	.51	.69	.78	.53	.6	.61
	Decline rate	.31	.2	.11	.13	.21	.16	.25	.08	.3	.2
Experiment 2	Criterion delay (s)	0	60	0	0	60	90	30	90	0
	Decline rate no sample trials	.3	.2	.33	.5	.25	.33	.15	.38	.5	.32
	Decline rate normal trials	.13	.18	.06	.2	.2	.13	0	.29	.2	.15
Experiment 3	Criterion delay (s)-Phase 1	20	80	20	20	80	110	50	110	20
	Criterion delay (s)-Phase 2	120	160	90	100	120	150	90	150	60
	Decline rate double sample trials	.05	.13	0	.3	.07	.05	.03	.3	0	.1
	Decline rate normal trials	.21	.33	.05	.5	.13	.24	.11	.62	.1	.26
Experiment 4	Criterion delay (s)	120	160	90	100	120	150	90	150	60
	Forced accuracy (0 sec)	.69	.56	.83	.88	.5	.88	.65	.73	.6	.70
	Forced accuracy criterion delay	.43	.5	.64	.5	.43	.21	.57	.43	.29	.44
	Forced accuracy long delay (4 min)	.45	.63	.33	.41	.33	.45	.38	.33	.36	.41
	Chosen accuracy (0 sec)	.72	.97	.71	.97	.77	.82	.84	.78	.88	.83
	Chosen accuracy (criterion delay)	.71	.97	.61	.75	.83	.75	.76	.74	.67	.75
	Chosen accuracy long delay (4 min)	.8	.67	.83	1	.69	.88	.81	.17	.5	.71
	Decline rate short delay (0 sec)	0	.06	.07	0	.19	.07	.03	.09	0	.06
	Decline rate criterion delay	.11	.23	.2	.6	.13	.19	.12	.49	.2	.24
	Decline rate long delay (4 min)	.78	.72	.67	.9	.42	.69	.51	.64	.5	.64

^*Criterion delay was readjusted during Experiment 1