Basic Experimental Effects on the Asymmetric Switching Task

	Reaction Times			Error Rate
	F	η2p	p	F	η2p	p
A. Before Reversal Only (blocks 1–4)
Task (Location vs. Direction)	266.73	.75	< .001	3.10	.03	.082
Switch (Switch vs. Repeat)	60.04	.40	< .001	108.14	.55	< .001
Block (1–2 vs. 3–4)	33.58	.27	< .001	22.56	.20	< .001
Task × Switch	18.74	.17	< .001	49.26	.35	< .001
Task × Block	4.89	.05	.030	1.51	.02	.223
Switch × Block	5.54	.06	.021	55.48	.38	< .001
Task × Switch × Block	3.89	.04	.052	2.43	.03	.123
B. After Reversal Only (blocks 5–6)
Task	237.80	.73	< .001	1.14	.01	.289
Switch	42.54	.32	< .001	95.86	.52	< .001
Task × Switch	19.85	.18	< .001	27.91	.24	< .001
C. Effect of Reversal (blocks 3–4 vs. 5–6)
Task (Location vs. Direction)	315.03	.78	< .001	4.25	.05	.042
Switch (Switch vs. Repeat)	51.54	.36	< .001	91.77	.51	< .001
Block (1–2 vs. 3–4 vs. 5–6)	.79	.01	.376	.08	.00	.777
Task × Switch	20.19	.18	< .001	56.19	.38	< .001
Task × Block	6.66	.07	.011	2.74	.03	.102
Switch × Block	7.57	.08	.007	7.87	.08	.006
Task × Switch × Block	2.45	.03	.121	1.21	.01	.274
D. All Blocks (blocks 1–2 vs. 3–4 vs. 5–6)
Task (Location vs. Direction)	310.76	.78	< .001	3.04	.03	.085
Switch (Switch vs. Repeat)	63.42	.41	< .001	147.76	.62	< .001
Block (1–2 vs. 3–4 vs. 5–6)a	25.13	.22	< .001	14.56	.14	< .001
Task × Switch	27.04	.23	< .001	62.84	.41	< .001
Task × Block a	9.91	.10	< .001	1.19	.01	.308
Switch × Block a	3.92	.04	.022	26.85	.23	< .001
Task × Switch × Block	2.17	.02	.117	1.35	.02	.263

Note: Degrees of freedom for all comparisons were F(1, 90) except when noted (^a), where degrees of freedom were F(2, 90).