Extaversion’s dirty little secret…

So in 2005 a very thoroughly researched and well-argued scholarly article was published that demonstrates, quite clearly, that group productivity is an illusion. All those brainstorming sessions and group projects you’ve been made to do at school and work? Useless. Everybody would have been better off working on their own. Here’s the abstract of the article:

It has consistently been found that people produce more ideas when working alone as compared to when working in a group. Yet, people generally believe that group brainstorming is more effective than individual brainstorming. Further, group members are more satisfied with their performance than individuals, whereas they have generated fewer ideas. We argue that this ‘illusion of group productivity’ is partly due to a reduction of cognitive failures (instances in which someone is unable to generate ideas) in a group setting. Three studies support that explanation, showing that: (1) group interaction leads to a reduction of experienced failures and that failures mediate the effect of setting on satisfaction; and (2) manipulations that affect failures also affect satisfaction ratings. Implications for group work are discussed.

Has the puncturing of that “illusion of group productivity” had any effect? Of course not. Groupthink is as powerful as ever. Why is that?

I’ll tell you. It’s because the world is run by extraverts. (And FYI, that’s the proper spelling: extrovert is common but wrong, because extra- is the proper Latin prefix.)