Table 1. Item characteristics for compatible and incompatible items in each condition (M ± SD).

	Vertical/close		Horizontal/distant		Consecutive
	Compatible	Incompatible	Compatible	Incompatible	Compatible	Incompatible
Larger number	75.80 ± 15.83	75.45 ± 14.44	75.83 ± 17.29	75.43 ± 15.17	76.20 ± 16.01	75.73 ± 15.78
Smaller number	42.38 ± 15.49	42.53 ± 14.28	42.25 ± 16.54	42.60 ± 14.38	42.50 ± 16.06	42.68 ± 15.07
First number	58.83 ± 23.06	59.03 ± 22.73	58.95 ± 23.95	58.90 ± 21.31	59.25 ± 22.24	59.23 ± 21.07
Second number	59.35 ± 23.05	58.95 ± 21.25	59.13 ± 24.02	59.13 ± 23.14	59.45 ± 24.53	59.18 ± 24.34
Distance	33.43 ± 16.00	32.93 ± 17.01	33.58 ± 15.81	32.83 ± 16.89	33.70 ± 15.91	33.05 ± 17.16
Decade distance	2.80 ± 1.64	3.83 ± 1.69	2.83 ± 1.62	3.80 ± 1.68	2.85 ± 1.64	3.83 ± 1.72
Unit distance	5.43 ± 1.38	5.33 ± 1.31	5.33 ± 1.27	3.18 ± 1.11	5.20 ± 1.20	5.20 ± 1.24