Smarter Faster Better: The Secrets of Being Productive

by Charles Duhigg

graders with a series of difficult puzzles.27 Afterward, each student was told they had scored very well. Half of them were also told, “You must have worked hard at these problems.” Telling fifth graders they have worked hard has been shown to activate their internal locus of control, because hard work is something we decide to do. Complimenting students for hard work reinforces their belief that they have control over themselves and their surroundings. The other half of the students were also informed they had scored well, and then told, “You must be really smart at these problems.” Complimenting students on their intelligence activates an external locus of control. Most fifth graders don’t believe they can choose how smart they are. In general, young kids think that intelligence is an innate capacity, so telling young people they are smart reinforces their belief that success or failure is based on factors outside of their control. Then all the students were invited to work on three more puzzles of varying difficulty. The students who had been praised for their intelligence—who had been primed to think in terms of things they could not influence—were much more likely to focus on the easier puzzles during the second round of play, even though they had been complimented for being smart. They were less motivated to push themselves. They later said the experiment wasn’t much fun. In contrast, students who had been praised for their hard work—who were encouraged to frame the ...