A study out of Carnegie-Mellon University measures the intelligence of groups:
“Put all the world’s smartest minds together in a room and just imagine what might happen. Well, not much, it seems.
Collective intelligence is not the sum of the intelligence of individual group members, research shows. Rather, group intelligence requires socially sensitive people who take turns speaking and, usually, are women….
Neither the average nor maximum intelligence scores of members of the three-person groups in the study predict the ability of the group to achieve.
Neither did other factors that might be expected to predict group performance, such as group cohesion, motivation and satisfaction, said the study leader, Anita Woolley from Carnegie Mellon University….
“Groups where a few people dominated the conversation were less collectively intelligent,” Dr Woolley said.”