A new study finds that some of the worst bullying among kids happens at home. According to a report in the July issue of the journal Pediatrics, bullying and aggressive behavior by a sibling can be as damaging as bullying by a classmate or neighbor.

That bullying can lead to anxiety, anger and depression.

Dr. Allan Kazdin, professor of Child Psychiatry at Yale University and Director of the Yale Parenting Center, joins the show with more.