Gustavo

“Everybody brainstorms; therefore, brainstorming is good. But does it work? Claims about the success of brainstorming rest on easily tested assumptions. One assumption is that groups produce more ideas than individuals. Researchers in Minnesota tested this with scientists and advertising executives from the 3M Company. Half the subjects worked in groups of four. The other half worked alone, and then their results were randomly combined as if they had worked in a group, with duplicate ideas counted only once. In every case, four people working individually generated between 30 to 40 percent more ideas than four people working in a group. Their results were of a higher quality, too: independent judges assessed the work and found that the individuals produced better ideas than the groups. Follow-up research tested whether larger groups performed any better. In one study, 168 people were either divided into teams of five, seven, or nine or asked to work individually. The research confirmed that working individually is more productive than working in groups. It also showed that productivity decreases as group size increases. The conclusion: “Group brainstorming, over a wide range of group sizes, inhibits rather than facilitates creative thinking.” The groups produced fewer and worse results because they were more likely to get fixated on one idea and because, despite all exhortations to the contrary, some members felt inhibited and refrained from full participation. Another assumption of brainstorming is that suspending judgment is better than assessing ideas as they appear. Researchers in Indiana tested this by asking groups of students to think of brand names for three different products. Half of the groups were told to refrain from criticism and half were told to criticize as they went along. Once again, independent judges assessed the quality of each idea. The groups that did not stop to criticize produced more ideas, but both groups produced the same number of good ideas. Deferring criticism added only bad ideas. Subsequent studies have reinforced this. Research into brainstorming has a clear conclusion. The best way to create is to work alone and evaluate solutions as they occur. The worst way to create is to work in large groups and defer criticism. Steve Wozniak, Steve Jobs’s cofounder at Apple and the inventor of its first computer, offers the same advice: “Work alone. You’re going to be best able to design revolutionary products and features if you’re working on your own. Not on a committee. Not on a team.”
― Kevin Ashton, How to Fly a Horse: The Secret History of Creation, Invention, and Discovery