Table 1.

Participants in the studies of Bilalić et al. (2010, 2011a,b, 2012): group, mean age, mean skill level as measured by the Elo rating (see Methods) with standard deviation (SD), number of standard deviations above the mean, and number of participants in each group in all four experiments.

Experiment	Group	Age ± SD	Elo ± SD	SDs above mean	n
1	Expert	30 ± 2	2117 ± 53	3	7
	Novice	28 ± 1	−	−	8
2	Expert	29 ± 7	2130 ± 147	3	8
	Novice	29 ± 5	−	−	8
3	Expert	30 ± 2	2117 ± 53	3	7
	Novice	29 ± 1	−	−	8
4	Expert	30 ± 5	2108 ± 148	3	8
	Novice	29 ± 4	−	−	15