Grade inflation is appallingly high, as schools pass out good grades in order to avoid bruised egos. As Twenge reports, “In 2004, 48 percent of American college freshmen – almost half – reported earning an A average in high school, compared to only 18 percent in 1968, even though SAT scores decreased over the same period.” Students often demand good grades for substandard work, and their parents act as reinforcements: “Teachers described parents who specified that their children were not to be corrected or ‘emotionally upset,’ who argued incessantly about grades, and even one father who…challenged a teacher to a fistfight.”

Of course, children have no motivation to work harder when their schools outlaw competition and celebrate mediocrity. Many schools now refuse to publish the honor roll, since it might hurt the self-esteem of students who didn’t make the grade. According to the touchy-feely pop psychology of the current education establishment, recognizing high achievers is unnecessary and cruel. Twenge offers an example: “11-year-old Kayla was invited to the math class pizza party, even though she managed only a barely passing 71. The pizza parties used to be only for children who made A’s, but in recent years the school has invited every child who simply passed.”

While the self-esteem movement hasn’t made children any smarter, it has made them more self-centered, manipulative, and indulgent. Cheating in schools is on the rise, with 74 percent of high school students admitting to cheating in 2002. The link to the self-esteem movement is clear: if everyone deserves to feel good regardless of how they behave, why should a student feel bad about stealing a copy of the final exam? It doesn’t mean he’s a bad person. The self-esteem movement has indeed had enormous effects on children born since the 1970s – and almost none of them are good. The California Task Force to Promote Self-Esteem and Personal and Social Responsibility spent a quarter-billion dollars trying to raise Californians’ self-esteem, only to find that it had no effect on teen pregnancy, juvenile delinquency, drug abuse, or chronic welfare dependency. On the other hand, people with high self-esteem tend to be unwilling to take responsibility for their own failures and bad behavior.

There is one personality trait that is definitely linked to achievement, and that is self-control. Although “discipline” and “obedience” have become dirty words in the education establishment, people with high levels of self-control are the most likely to succeed. They earn higher grades and finish more years of education, and they’re less likely to abuse drugs or have children out of wedlock. As Twenge says, “Self-control predicts all of those things researchers had hoped self-esteem would, but hasn’t.”

This short column cannot do justice to Twenge’s meticulously researched and revealing book. However, it’s a must-read for parents and teachers who hope to unravel the myth of self-esteem.