What else can parents learn from the science? Researchers say these are the biggest common boo-boos:
1. Parents fail at setting limits
It would be hard to find a parent who doesn't agree that setting and enforcing rules are an essential part of the job description. Yet faced with whining, pouting, and tantrums, many parents cave. "The limited time you have with your kids, you want to make it ideal for them," says Forehand, a professor of psychology at the University of Vermont whose evidence-based program is outlined in his book. "As a result, we end up overindulging our kids."
But, paradoxically, not having limits has been proven to make children more defiant and rebellious, because they feel unsafe and push to see if parents will respond. Research since the 1960s on parenting styles has found that a child whose mom and dad are permissive is more likely to have problems in school and abuse drugs and alcohol as teenagers. "Parents ask their 1-year-olds what they want for dinner now," says Jean Twenge, an associate professor of psychology at San Diego State University and author of Generation Me. "No one ever said that a generation or two ago." Using surveys dating back to the 1930s, Twenge has found significant increases in reported symptoms of depression and anxiety among today's children and teenagers, compared with earlier generations. Suniya Luthar, a psychologist at Columbia University Teachers College, reported in 2003 that children who are showered with advantages are more likely to be depressed and anxious and to abuse drugs and alcohol than the norm. Luthar says that's probably because those children are under a lot of pressure to achieve at school and think that their parents value their achievements more than themselves. They also feel isolated from their parents.
Rule-setting works best when parents give simple, clear commands and discuss the family rules with kids well in advance of a conflict, according to Robert Hendren, a professor of psychiatry at the Medical Investigation of Neurodevelopmental Disorders Institute at the University of California-Davis and president of the American Academy of Child and Adolescent Psychiatry. A common recommendation for parents who fear coming off as a meanie: Let the child choose between two options when either choice is acceptable to the parent. A half-hour of Nintendo right after school, then homework? All homework before game time?
Consistency is also key. "I have to be very strict with myself and go over and tell him the rules and walk away," says Lauren Jordan, a stay-at-home mom in Essex Junction, Vt., whose 4-year-old son, Peter, would scream and hit Jordan and her husband, Sean, then kick the wall during timeout. "It felt out of control." Jordan signed up with Vermont's Behavior Therapy and Psychotherapy Center to learn Forehand's five-week process.
The first week was spent just "attending" to Peter, watching him play and commenting without telling the preschooler what to do. "He loved it," says Jordan, whose older son has autism and has required an outsize share of her energy. "I realized at that point that he needs this one-on-one attention." Jordan then had to learn to ignore Peter's minor bad behavior (such as screaming for attention while Mom is on the phone) and to not rush in to scold him during a timeout. "Consistency is the key. It's not easy," Jordan says. "But it's made our home a much happier place."
2. They're overprotective
Teachers, coaches, and psychotherapists alike have noticed that parents today can't stand to see their children struggle or suffer a setback. So they're stepping in to micromanage everything from playground quarrels to baseball team positions to grades. Even bosses aren't immune. One owner of a New York public relations firm says he has gotten E-mails from parents telling him that's he's making their child work too much. The child in question is in his 20s.