In recent years, bullying has gained national attention following research that documents its pervasive negative impact on American youth, including serious health and developmental outcomes. According to the National Education Association, on any given day, nearly 160,000 children in the U.S. miss school due to a fear of being bullied. Research suggests that the most effective way to address bullying is through schoolwide efforts that are evidence-based and comprehensively focus on changing the climate of a school. The Center for Safe Schools is committed to preventing and reducing the incidents of bullying in schools through technical assistance, training, evaluation, and research.