Consider, for a moment, two very different people:
Neville is a friendly, warm person who tends to cooperate
with and trust others. He generally expects the best of people, and tends to be
generous and helpful towards others. He tries to be modest about himself.
Draco, on the other hand, is an aloof, rude person who tends
to be competitive and suspicious of others. He’s cynical about people – he doesn’t
expect them to return favors, so he’s not that likely to be helpful. He thinks
modesty is overrated.
How would personality psychology say these two differ? Well,
they’re at opposite ends of the spectrum of “agreeableness” – if you feel more
similar to Neville, you’re probably high in agreeableness, and if Draco hits closer to home, you’re probably relatively disagreeable. Agreeableness
captures how interpersonally warm, trusting, modest, altruistic, cooperative,
straightforward, sympathetic, and easygoing you are, and is one of the building
blocks of personality.
So what does being agreeable mean for your work life and
parenting styles? How about your health outcomes and environmental behavior?
Let’s see what the literature has to say.