In each round, the computer made random pairs within the group. (sciencemag.org)
30x30 Creation Challenge» selected 15 scientists and 15 artists from about 80 applicants, and gave them 24 hours to come up with a creative output on the theme of «ageing» in random pairs of a scientist and an artist. (britishcouncil.kr)
Also, for young couples, participants could not distinguish between newlyweds and random pairs in terms of whether they were actually married; however, among older couples, participants were better at detecting which couples were married and which ones were not (presumably on the basis of those differences in facial resemblance). (lehmiller.com)