Table 1. Number of subjects who favoured their own group and different degrees of in-group favouritism.

Degree of favouritism	Yellow	Red	A	B
(own group > neutral)
Between 1 and 25	28 (38%)	19 (30%)	42 (53%)	41 (47%)
Between 26 and 50	18(25%)	10 (16%)	3 (4%)	6 (7%)
Between 51 and 75	2 (3%)	7 (11%)	0	0
Between 76 and 100	0	0	1 (1%)	0
No favouritism (own group = neutral)	16 (22%)	20 (31%)	30 (38%)	37 (43%)
Other (own group < neutral)	9 (12%)	8 (13%)	3 (4%)	3 (3%)
Total	73	64	79	87

Note: the percentage in parentheses is the number of subjects choosing a particular choice as % of total number of subjects