Grit factor Angela Duckworth

Before she was a psychology professor, Angela Duckworth taught math in middle school and high school. She spent a lot of time thinking about something that might seem obvious: The students who tried hardest did the best, and the students who didn't try very hard didn't do very well. Duckworth wanted to know: What is the role of effort in a person's success?

Now Duckworth is an assistant professor at the University of Pennsylvania, and her research focuses on a personality trait she calls "grit." She defines grit as "sticking with things over the very long term until you master them." In a paper, she writes that "the gritty individual approaches achievement as a marathon; his or her advantage is stamina."

Duckworth's research suggests that when it comes to high achievement, grit may be as essential as intelligence. That's a significant finding because for a long time, intelligence was considered the key to success.

Intelligence "is probably the best-measured trait that there is in all of human psychology," says Duckworth. "We know how to measure intelligence in a matter of minutes."

But intelligence leaves a lot unexplained. There are smart people who aren't high achievers, and there are people who achieve a lot without having the highest test scores. In one study, Duckworth found that smarter students actually had less grit than their peers who scored lower on an intelligence test. This finding suggests that, among the study participants -- all students at an Ivy League school -- people who are not as bright as their peers "compensate by working harder and with more determination." And their effort pays off: The grittiest students -- not the smartest ones -- had the highest GPAs.

The Grit Test

Duckworth's work is part of a growing area of psychology research focused on what are loosely called "noncognitive skills." The goal is to identify and measure the various skills and traits other than intelligence that contribute to human development and success.

Duckworth has developed a test called the "Grit Scale." You rate yourself on a series of 8 to 12 items. Two examples: "I have overcome setbacks to conquer an important challenge" and "Setbacks don't discourage me." It's entirely self-reported, so you could game the test, and yet what Duckworth has found is that a person's grit score is highly predictive of achievement under challenging circumstances.

At the elite United States Military Academy, West Point, a cadet's grit score was the best predictor of success in the rigorous summer training program known as "Beast Barracks." Grit mattered more than intelligence, leadership ability or physical fitness.