Table 2.

Mean Accuracy in All Conditions

Tested	Condition	Grades	SD	Grades	SD	College	SD
Set		1–2		6–7
Size
		1-Shape Trial Blocks
2	Location Change	0.62	0.24	0.93	0.15	0.92	0.18
	New Color	0.87	0.17	0.95	0.12	0.98	0.08
	No Change	0.84	0.25	0.96	0.07	0.98	0.06
3	Location Change	0.47	0.23	0.79	0.23	0.77	0.24
	New Color	0.74	0.21	0.92	0.15	0.88	0.16
	No Change	0.65	0.25	0.86	0.14	0.92	0.12
4	Location Change	0.30	0.26	0.58	0.30	0.67	0.27
	New Color	0.72	0.28	0.82	0.22	0.87	0.14
	No Change	0.47	0.26	0.76	0.20	0.83	0.16
6	Location Change	0.15	0.19	0.35	0.31	0.39	0.28
	New Color	0.68	0.24	0.68	0.29	0.68	0.24
	No Change	0.37	0.19	0.52	0.21	0.54	0.19
		100% Trial Block
2	Location Change	0.61	0.31	0.88	0.19	0.91	0.17
	New Color	0.85	0.17	0.95	0.10	0.91	0.14
	No Change	0.73	0.28	0.94	0.08	0.95	0.09
	Other Shape's	0.77	0.26	0.92	0.17	0.88	0.21
	Color
3	Location Change	0.36	0.28	0.73	0.29	0.79	0.25
	New Color	0.77	0.22	0.85	0.19	0.90	0.13
	No Change	q	0.22	0.78	0.17	0.84	0.17
	Other Shape's	0.65	0.26	0.85	0.18	0.84	0.20
	Color
		80% Trials (Within 80%–20% Trial Blocks)
2	Location Change	0.34	0.19	0.69	0.22	0.68	0.24
	New Color	0.83	0.17	0.85	0.17	0.89	0.14
	No Change	0.52	0.25	0.82	0.16	0.79	0.16
	Other Shape's	0.65	0.21	0.76	0.22	0.68	0.29
	Color
3	Location Change	0.18	0.16	0.48	0.31	0.45	0.24
	New Color	0.72	0.26	0.80	0.18	0.83	0.18
	No Change	0.35	0.24	0.61	0.25	0.66	0.18
	Other Shape's	0.69	0.23	0.69	0.20	0.62	0.27
	Color
		50% (Divided Attention) Trial Blocks
2	Location Change	0.24	0.25	0.56	0.31	0.61	0.31
	New Color	0.71	0.33	0.84	0.23	0.93	0.15
	No Change	0.41	0.21	0.72	0.18	0.73	0.19
	Other Shape's	0.56	0.32	0.69	0.24	0.62	0.31
	Color
3	Location Change	0.17	0.21	0.37	0.29	0.33	0.20
	New Color	0.72	0.32	0.76	0.26	0.73	0.30
	No Change	0.31	0.22	0.46	0.21	0.54	0.17
	Other Shape's	0.52	0.29	0.58	0.27	0.65	0.30
	Color
		20% Trials (Within 80%–20% Trial Blocks)
2	Location Change	0.17	0.27	0.50	0.44	0.63	0.41
	New Color	0.65	0.37	0.78	0.39	0.85	0.23
	No Change	0.38	0.29	0.57	0.31	0.61	0.31
	Other Shape's	0.55	0.38	0.80	0.31	0.55	0.40
	Color
3	Location Change	0.22	0.31	0.27	0.34	0.33	0.36
	New Color	0.80	0.31	0.72	0.39	0.68	0.33
	No Change	0.23	0.24	0.38	0.31	0.51	0.29
	Other Shape's	0.62	0.43	0.65	0.30	0.62	0.36
	Color

Note. For location changes, responses were counted as correct in this table only if the correct location was indicated.