Read Excerpt: 'NurtureShock' by Po Bronson and Ashley Merryman

Aug. 31, 2009— -- According to Po Bronson and Ashley Merryman, today's children are being raised by parents who are generally very involved in their lives.

In "NurtureShock," the science journalists explore misconceptions about raising children and how some of the modern strategies are doing more harm than good because they ignore nature.

Read a chapter from the book below, then click here to explore the "GMA" Library for more great reads.

Sure, he's special. But new research suggests that if you tell him that, you'll ruin him. It's a neurobiological fact.

What do we make of a boy like Thomas?

Thomas (his middle name) is a fifth-grader at the highly competitive P.S. 334, the Anderson School on West 84th in New York City. Slim as they get, Thomas recently had his long sandy-blond hair cut short to look like the new James Bond (he took a photo of Daniel Craig to the barber). Unlike Bond, he prefers a uniform of cargo pants and a T-shirt emblazoned with a photo of one of his heroes: Frank Zappa. Thomas hangs out with five friends from the Anderson School. They are "the smart kids." Thomas is one of them, and he likes belonging.

Since Thomas could walk, he has constantly heard that he's smart. Not just from his parents but from any adult who has come in contact with this precocious child. When he applied to Anderson for kindergarten, his intelligence was statistically confirmed. The school is reserved for the top 1 percent of all applicants, and an IQ test is required. Thomas didn't just score in the top 1 percent. He scored in the top 1 percent of the top 1 percent.

But as Thomas has progressed through school, this self-awareness that he's smart hasn't always translated into fearless confidence when attacking his schoolwork. In fact, Thomas's father noticed just the opposite. "Thomas didn't want to try things he wouldn't be successful at," his father says. "Some things came very quickly to him, but when they didn't, he gave up almost immediately, concluding, 'I'm not good at this.' " With no more than a glance, Thomas was dividing the world into two— things he was naturally good at and things he wasn't.

For instance, in the early grades, Thomas wasn't very good at spelling, so he simply demurred from spelling out loud. When Thomas took his first look at fractions, he balked. The biggest hurdle came in third grade. He was supposed to learn cursive penmanship, but he wouldn't even try for weeks. By then, his teacher was demanding homework be completed in cursive. Rather than play catch-up on his penmanship, Thomas refused outright. Thomas's father tried to reason with him. "Look, just because you're smart doesn't mean you don't have to put out some effort." (Eventually, Thomas mastered cursive, but not without a lot of cajoling from his father.)

Why does this child, who is measurably at the very top of the charts, lack confidence about his ability to tackle routine school challenges?

Thomas is not alone. For a few decades, it's been noted that a large percentage of all gifted students (those who score in the top 10 percent on aptitude tests) severely underestimate their own abilities. Those afflicted with this lack of perceived competence adopt lower standards for success and expect less of themselves. They underrate the importance of effort, and they overrate how much help they need from a parent.

When parents praise their children's intelligence, they believe they are providing the solution to this problem. According to a survey conducted by Columbia University, 85 percent of American parents think it's important to tell their kids that they're smart. In and around the New York area, according to my own (admittedly nonscientific) poll, the number is more like 100 percent. Everyone does it, habitually. "You're so smart, Kiddo," just seems to roll off the tongue.

"Early and often," bragged one mom, of how often she praised. Another dad throws praise around "every chance I get." I heard that kids are going to school with affirming handwritten notes in their lunchboxes and—when they come home—there are star charts on the refrigerator. Boys are earning baseball cards for clearing their plates after dinner, and girls are winning manicures for doing their homework. These kids are saturated with messages that they're doing great—that they are great, innately so. They have what it takes.

The presumption is that if a child believes he's smart (having been told so, repeatedly), he won't be intimidated by new academic challenges. The constant praise is meant to be an angel on the shoulder, ensuring that children do not sell their talents short. But a growing body of research—and a new study from the trenches of the New York City public school system—strongly suggests it might be the other way around. Giving kids the label of "smart" does not prevent them from underperforming. It might actually be causing it.

Though Dr. Carol Dweck recently joined the faculty at Stanford, most of her life has been spent in New York; she was raised in Brooklyn, went to college at Barnard, and taught at Columbia for decades. This reluctant new Californian just got her first driver's license—at age sixty. Other Stanford faculty have joked that she'll soon be sporting bright colors in her couture, but so far Dweck sticks to New York black—black suede boots, black skirt, trim black jacket. All of which matches her hair and her big black eyebrows—one of which is raised up, perpetually, as if in disbelief. Tiny as a bird, she uses her hands in elaborate gestures, almost as if she's holding her idea in front of her, physically rotating it in three-dimensional space. Her speech pattern, though, is not at the impatient pace of most New Yorkers. She talks as if she's reading a children's lullaby, with gently punched-up moments of drama.

For the last ten years, Dweck and her team at Columbia have studied the effect of praise on students in twenty New York schools. Her seminal work—a series of experiments on 400 fifth-graders— paints the picture most clearly. Prior to these experiments, praise for intelligence had been shown to boost children's confidence. But Dweck suspected this would backfire the first moment kids experienced failure or difficulty.

Dweck sent four female research assistants into New York fifth-grade classrooms. The researchers would take a single child out of the classroom for a nonverbal IQ test consisting of a series of puzzzles—puzzles easy enough that all the children would do fairly well. Once the child finished the test, the researchers told each student his score, then gave him a single line of praise. Randomly divided into groups, some were praised for their intelligence. They were told, "You must be smart at this." Other students were praised for their effort: "You must have worked really hard."

Why just a single line of praise? "We wanted to see how sensitive children were," Dweck explained. "We had a hunch that one line might be enough to see an effect."

Then the students were given a choice of test for the second round. One choice was a test that would be more difficult than the first, but the researchers told the kids that they'd learn a lot from attempting the puzzles. The other choice, Dweck's team explained, was an easy test, just like the first. Of those praised for their effort, 90 percent chose the harder set of puzzles. Of those praised for their intelligence, a majority chose the easy test. The "smart" kids took the cop-out.

Why did this happen? "When we praise children for their intelligence," Dweck wrote in her study summary, "we tell them that this is the name of the game: look smart, don't risk making mistakes." And that's what the fifth-graders had done. They'd chosen to look smart and avoid the risk of being embarrassed.