How Children Succeed

Perry Preschool. The recruited children were divided randomly into a treatment group and a control group. Children in the treatment group were admitted to Perry, a high-quality, two-year preschool program, and kids in the control group were left to fend for themselves. And then the children were tracked—not just for a year or two, but for decades, in an ongoing study that is intended to follow them for the rest of their lives. The subjects are now in their forties, which means that researchers have been able to trace the effects of the Perry intervention well into adulthood.

The Perry Preschool Project is famous in social science circles, and Heckman had encountered it, glancingly, several times before in his career. As a case for early-childhood intervention, the experiment had always been considered something of a failure. The treatment children did do significantly better on cognitive tests while attending the preschool and for a year or two afterward, but the gains did not last, and by the time the treatment children were in the third grade, their IQ scores were no better than the control group’s. But when Heckman and other researchers looked at the long-term results of Perry, the data appeared more promising. It was true that the Perry kids hadn’t experienced lasting IQ benefits. But something important had happened to them in preschool, and whatever it was, the positive effects resonated for decades. Compared to the control group, the Perry students were more likely to graduate from high school, more likely to be employed at age twenty-seven, more likely to be earning more than twenty-five thousand dollars a year at age forty, less likely ever to have been arrested, and less likely to have spent time on welfare.

Heckman began to rummage more deeply into the Perry study, and he learned that in the 1960s and 1970s, researchers had collected some data on the students that had never been analyzed: reports from teachers in elementary school rating both the treatment and the control children on “personal behavior” and “social development.” The first term tracked how often each student swore, lied, stole, or was absent or late; the second one rated each student’s level of curiosity as well as his or her relationships with classmates and teachers. Heckman labeled these noncognitive skills, because they were entirely distinct from IQ. And after three years of careful analysis, Heckman and his researchers were able to ascertain that those noncognitive factors, such as curiosity, self-control, and social fluidity, were responsible for as much as two-thirds of the total benefit that Perry gave its students.

The Perry Preschool Project, in other words, worked entirely differently than everyone had believed. The goodhearted educators who set it up in the sixties thought that they were creating a program to raise the intelligence of low-income children; they, like everyone else, believed that was the way to help poor kids get ahead in America. Surprise number one was that they created a program that didn’t do much in the long term for IQ but did improve behavior and social skills. Surprise number two was that it helped anyway—for the kids in Ypsilanti, those skills and the underlying traits they reflected turned out to be very valuable indeed.

In the course of reporting this book, I spent a lot of time discussing success and skills with a variety of economists, psychologists, and neuroscientists, many of whom were linked to James Heckman by one or two degrees of separation. But what grounded their research for me, what brought it to life and gave it meaning, was a different kind of reporting that I was doing at the same time, in public schools and pediatric clinics and fast-food restaurants, where I was talking with young people whose lives embodied and illustrated, in one way or another, the complex question of which children succeed and how.

Take Kewauna Lerma. When I met her, in the winter of 2010, she was living on the South Side of Chicago— not too far, as it turned out, from the University of Chicago campus where Heckman spent his days. Kewauna had been born on the South Side, into poverty, seventeen years earlier, the second daughter of a mother who had her first child, Kewauna’s older sister, when she was still a teenager. Kewauna had a rootless, unsettled childhood. When she was a baby, her mother moved the family to Mississippi, then to Minnesota, then back to Chicago as she drifted in and out of relationships and in and out of trouble. When things were bad, the family spent periods in shelters or bouncing from one friend’s couch to another’s. Sometimes Kewauna’s great-grandmother would take the kids for a while and let Kewauna’s mother try to sort out her life on her own.

“I didn’t really have a family family,” Kewauna told me the first time we spoke. We were sitting in a coffee shop in the Kenwood neighborhood. It was the middle of a harsh Chicago winter, and the windows were fogged over. Kewauna has dark skin, big, sympathetic eyes, and straight, dark hair, and she sat forward, warming her hands on a foam-topped mug of hot chocolate. “I was scattered all over the place, no father, with my grandma sometimes. It was all messed up. Jacked up.”

Growing up, Kewauna said, she hated school. She never learned to read well, and in elementary school she fell farther and farther behind each year, getting in trouble, skipping class, and talking back to teachers. When she was in sixth grade, living outside of Minneapolis, she collected seventy-two referrals for poor behavior by the middle of the year, and so she was assigned to the slow class. She hated that too. A few weeks before the end of the year, she was kicked out of school for fighting.

When I met Kewauna, I had been reporting for several years on children growing up in poverty, and I had heard plenty of stories like hers. Every unhappy family may be unhappy in its own way, but in families that stay trapped in poverty for generations, the patterns can become depressingly familiar, a seemingly endless cycle of absent or neglectful parents, malfunctioning schools, and bad decisions. I knew how stories like Kewauna’s generally turned out. Girls with her history, whatever their good intentions, usually drop out of high school. They get pregnant while they are still teenagers. Then they struggle to raise families on their own, and before long, their own children are sliding down the same slope to failure.

But somewhere along the way, Kewauna’s life took a different turn. Just before her sophomore year of high school, a few weeks after Kewauna was arrested for the first time, for scuffling with a police officer, Kewauna’s mother told her that she wanted to have a talk. Kewauna knew it was serious, because her great-grandmother was there, too, the one member of her family Kewauna had always respected. The two women sat Kewauna down, and her mother uttered one of the hardest sentences for any parent to say: “I don’t want you to end up like me.” The three of them talked for hours, discussing the past and the future, digging up some long-buried secrets. Kewauna’s mother said she recognized the path that Kewauna was on: She also had been kicked out of school as a teenager; she, too, had been arrested for fighting with the police. But the next chapter of Kewauna’s story, her mom said, could be a different one. She could avoid unplanned pregnancies, unlike her mother. She could go to college, unlike her mother. She could have a career, unlike her mother.

Kewauna’s mom cried through practically the whole conversation, but Kewauna herself never shed a tear. She just listened. She wasn’t sure what to think. She didn’t know if she could change, and she didn’t know if she wanted to. When she got back to school, though, she started to pay more attention in class. In freshman year, she had run around with a rough crowd, girls into gangs and boys into drugs and everyone into skipping school. Now she pulled herself away from those friends, spending more time alone, doing homework and thinking about her future. At the end of her freshman year, her GPA was a miserable 1.8. By the middle of her sophomore year, it had climbed to 3.4.

That February, her English teacher encouraged her to apply for an intensive three-year college-prep program that had recently been introduced at the school. Kewauna applied, and she was accepted, and the support the program gave her made her work even harder. When I met her, she was in the middle of her junior year. Her GPA was 4.2, and she was preoccupied with the question of which colleges to apply to.

So what happened? If you had met Kewauna on the first day of her sophomore year, you could have been forgiven for thinking that she had virtually no chance to succeed. Her destiny seemed sealed. But something in her changed. Was it really just one stern talk with her mom? Was that all it took? Was it her great-grandmother’s positive influence? The intervention of her English teacher? Or was there something deep within her own character that inclined her toward the idea of hard work and success, despite all the obstacles she had faced and the mistakes she had made?

How do our experiences in childhood make us the adults we become? It is one of the great human questions, the theme of countless novels, biographies, and memoirs; the subject of several centuries’ worth of philosophical and psychological treatises. This process—the experience of growing up—can appear at times to be predictable, even mechanical, and at other times to be arbitrary and capricious; we’ve all encountered grown men and women who seem trapped in a destiny preordained by their childhoods, and we’ve all met people who seem to have almost miraculously transcended harsh beginnings.

Until recently, though, there has never been a serious attempt to use the tools of science to peel back the