Table 1.

User descriptions.

	Age	Sex		Age	Sex
User 1	25	Male	User 7	25	Male
User 2	26	Female	User 8	23	Male
User 3	24	Female	User 9	23	Female
User 4	26	Male	User 10	24	Male
User 5	27	Female	User 11	30	Male
User 6	25	Female	User 12	35	Male