Table 3.

Proportion of correct responses for each test, for each individual. Deviation from chance at the individual level was tested by an exact binomial test.

Individuals	Number of successful trials over the total number of trials
	2-cup test	3-cup test	S.t. test trials	S.t. control trials
Ukraine	33/36***	25/36***	23/24***	9/12NS
Uppsala	32/36***	32/36***	18/24*	12/12***
Ballerine	35/36***	26/36***	16/24NS	9/12NS
Valda	31/36***	25/36***
Volga	30/36***	21/36**
Aventure	30/36***	24/36***
Urielle	34/36***	25/36***
Vanille	31/36***
Vaillante	28/36**
Altesse	31/36***
Mean proportion of success	0.87**	0.70*	0.79	0.83
Total number of trials	36	36	24	12
Chance level	0.50	0.33	0.50	0.50

Deviation from chance at the group level was tested by a Wilcoxon signed rank test. S.t stands for “single-transposition (ST).”

^NSp > 0.05;

^*p ≤ 0.05;

^**p < 0.01;

^***p < 0.001.