WASHINGTON (AP) — The number of violent attacks and incidents of bullying in American public schools has gone down in recent years, according to a federal report published Thursday.

Violence and bullying were more frequent in middle schools than in high schools or elementary schools, said the study by the Education Department's National Center for Education Statistics.

The report said the rate of violent incidents in middle schools dropped from 40 incidents per 1,000 students in the 2009-2010 school year to 27 incidents in 2015-2016. Bullying in middle schools was observed in 39 percent of sch...