Table 1.

Collated data from the 12 student groups. Values indicate the average number of trials required for conditioning response.

Group ID	Dopamine	Control	Caffeine
1	6.00	5.67	4.50
2	4.00	5.00	5.67
3	6.33	6.00	4.00
4	5.00	7.00	5.00
5	5.00	4.50	5.00
6	4.00	4.00	4.50
7	5.00	6.50	5.00
8	6.33	7.00	4.00
9	4.67	5.00	5.67
10	6.00	6.00	6.00
11	5.00	6.67	5.00
12	4.00	6.33	4.67
Average	5.11	5.81	4.92