quiet-the-power-of-introverts-in-a-world-that-cant-stop-talking-susan-cain

entering it. A similar thing happened
when groups of introverts and extroverts
were given the Raven Standard
Progressive Matrices, an intelligence
test that consists of five sets of problems
of increasing difficulty. The extroverts
tended to do better on the first
two sets, presumably because of their
ability to orient quickly to their goal.
But on the three more difficult sets,
where persistence pays, the introverts
significantly outperformed them. By the
final, most complicated set, the extroverts
were much more likely than the
introverts to abandon the task
altogether.
Introverts sometimes outperform extroverts
even on social tasks that require
persistence. Wharton management
professor Adam Grant (who conducted
the leadership studies described
in chapter 2) once studied the
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