Kids who get bullied and snubbed by peers may be more likely to have problems in other parts of their lives, past studies have shown. And now researchers have found at least three factors in a child's behavior that can lead to social rejection.

The factors involve a child's inability to pick up on and respond tononverbal cues from their pals.

In the United States, 10 to 13 percent of school-age kids experience some form of rejection by their peers. In addition to causing mental health problems, bullying and social isolation can increase the likelihood a child will get poor grades, drop out of school, or develop substance abuse problems, the researchers say.

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