Evidence has long shown that getting a group of people to think individually about solutions, and then combining their ideas, can be more productive than getting them to think as a group. Some people are afraid of introducing radical ideas in front of a group and don’t speak up; in other cases, the group is either too small or too big to be effective.

But according to a recently published study, the real problem may be that participants’ [sic] get stuck on each others’ ideas. On Monday, the British Psychological Society highlighted a recent study by Nicholas Kohn and Steven Smith, two researchers at the University of Texas at Arlington and Texas A&M; University. [...] As expected, the “nominal” groups, or those made up of individual ideas that were later pulled together, outperformed the real chat groups, both with the number of ideas and the diversity of them.