ENDLESS meetings that do little but waste everyone’s time. Dysfunctional committees that take two steps back for every one forward. Project teams that engage in wishful groupthinking rather than honest analysis. Everyone who is part of an organization — a company, a nonprofit, a condo board — has experienced these and other pathologies that can occur when human beings try to work together in groups.
Psychologists have known for a century that individuals vary in their cognitive ability. But are some groups, like some people, reliably smarter than others?