Table 2.

Summary of treatment group differences and t probabilities in the number of pellets taken, pellets eaten, the percent of success, and the percent of misplaced pellets, as a function of difficult to reach step levels (3-6) for trials with 45 mg and 20 mg food pellets. Group contrasts at the first two highest step levels were not significant for any outcomes and pellet size (data not shown).

		45 mg pellet size				20 mg pellet size
	Step levels	Pellets taken	Pellets eaten	Success %	Mispl. %	Pellets taken	Pellets eaten	Success %	Mispl. %
Early life 50 vs. Control	3	0.10	0.07	0.61	0.10	0.25	0.58	0.59	0.28
	4	0.03	0.61	0.28	0.74	0.09	0.49	0.54	0.27
	5	0.04	0.74	0.07	0.72	0.07	0.32	0.48	0.65
	6	0.16	0.81	0.08	0.90	0.04	0.20	0.71	0.91
Lifelong 25 vs. Control	3	0.06	0.03	0.19	0.03	0.18	0.60	0.82	0.02
	4	0.01	0.01	0.08	0.02	0.02	0.26	0.69	0.01
	5	0.00	0.01	0.12	0.00	0.00	0.01	0.10	0.00
	6	0.00	0.16	0.84	0.76	0.00	0.02	0.06	0.38
Lifelong 50 vs. Control	3	0.83	0.90	0.92	0.35	0.89	0.45	0.45	0.57
	4	0.29	0.23	0.50	0.16	0.82	0.92	0.91	0.03
	5	0.00	0.04	0.07	0.05	0.17	0.24	0.32	0.03
	6	0.04	0.46	0.63	0.09	0.02	0.12	0.79	0.86
Early life 25 vs. Lifelong 25	3	0.07	0.01	0.05	0.22	0.13	0.01	0.04	0.01
	4	0.05	0.01	0.02	0.05	0.01	0.01	0.36	0.06
	5	0.01	0.01	0.07	0.00	0.01	0.01	0.04	0.00
	6	0.00	0.20	0.61	0.91	0.00	0.29	0.69	0.85
Early life 50 vs. Lifelong 50	3	0.15	0.09	0.88	0.53	0.32	0.19	0.20	0.62
	4	0.28	0.45	0.03	0.25	0.14	0.56	0.62	0.28
	5	0.29	0.07	0.00	0.11	0.69	0.82	0.09	0.07
	6	0.44	0.59	0.03	0.12	0.71	0.74	0.51	0.95
Early life 25 vs. Early life 50	3	0.12	0.02	0.52	0.53	0.19	0.01	0.02	0.13
	4	0.16	0.63	0.30	0.86	0.05	0.04	0.50	0.74
	5	0.55	0.97	0.10	0.19	0.16	0.29	0.76	0.92
	6	0.40	0.93	0.27	0.95	0.09	0.94	0.06	0.32
Lifelong 25 vs. Lifelong 50	3	0.10	0.04	0.16	0.23	0.23	0.20	0.31	0.09
	4	0.10	0.14	0.29	0.34	0.04	0.31	0.78	0.67
	5	0.40	0.51	0.77	0.32	0.08	0.19	0.52	0.20
	6	0.20	0.53	0.48	0.16	0.26	0.45	0.12	0.49