. Author manuscript; available in PMC: 2018 Jan 1.

Published in final edited form as: J Exp Anal Behav. 2017 Jan;107(1):136–150. doi: 10.1002/jeab.239

Table 2.

Median responses emitted in terminal links and (in parentheses) the ratio of total responses emitted and total pellets obtained in the final six sessions of Experiments 1 and 2

Pigeon	Forced Trials				Choice Trials				Unit Price

	Suboptimal		Optimal		Suboptimal		Optimal
	S10_0.2	S0_0.8	O3_0.2	O3_0.8	S10_0.2	S0_0.8	O3_0.2	O3_0.8	Suboptimal	Optimal
Experiment 1
P1	4 (102/240)	0 (44/0)	0 (7/72)	1 (151/288)	4 (72/180)	0 (39/0)	0 (1/18)	2 (56/75)	0.61	0.47
P2	27 (645/240)	1 (62/0)	7 (182/72)	9 (936/288)	26 (557/210)	0 (53/0)	9 (18/6)	8 (87/27)	2.93	3.11
P3	5 (129/240)	0 (19/0)	2 (60/72)	4 (433/288)	4.5 (104/220)	0 (22/0)	3 (7/9)	3.5 (26/24)	0.60	1.34
P4	6 (151/240)	0 (38/0)	3.5 (113/72)	3 (336/288)	4.5 (90/200)	0 (48/0)	1 (8/9)	4.5 (68/42)	0.74	1.28
P5	9.5 (205/240)	.5 (64/0)	2.5 (73/72)	3 (379/288)	8 (201/240)	0 (68/0)	2.5 (5/6)	1 (5/15)	1.12	1.21
P6	30.5 (701/240)	0 (30/0)	6 (170/72)	4 (563/288)	28 (613/240)	0 (20/0)	11 (11/3)	7 (33/15)	2.84	2.06
Experiment 2
P1	0 (10/240)	0 (9/0)	0 (2/72)	0 (13/288)	1 (12/190)	0 (5/0)	0 (1/12)	0 (1/45)	0.08	0.04
P2	1 (43/240)	0 (5/0)	0 (1/72)	0 (26/288)	1 (33/240)	0 (1/0)	0 (0/0)	0 (0/9)	0.17	0.07
P3	1 (20/240)	0 (18/0)	0 (2/72)	0 (7/288)	1 (18/230)	0 (14/0)	0 (0/0)	0 (0/6)	0.15	0.03
P4	1 (29/240)	0 (14/0)	0 (1/72)	0 (8/288)	0 (13/200)	0 (17/0)	0 (0/12)	0 (0/48)	0.17	0.02
P5	0 (8/240)	0 (17/0)	0 (3/72)	0 (18/288)	0 (9/240)	0 (9/0)	0 (0/6)	0 (1/24)	0.09	0.06
P6	37 (888/240)	0 (21/0)	12.5 (247/72)	0 (195/288)	32.5 (791/240)	0 (30/0)	16 (51/12)	.5 (1/6)	3.6	1.31

Note. Data are separated by forced and choice trials, and by the terminal-link stimuli in each trial. The final columns provide obtained unit prices, calculated across forced and choice trials.