In 2004 - 2005, the school only had a 73 % attendance rate, and 75 % of ninth graders failed at least one course. (priorityschools.org)
They also found that eighth and ninth graders who played violent games more frequently displayed greater «hostile attribution bias» (being vigilant for enemies) and got into more arguments with teachers. (scientificamerican.com)
Only approximately two - thirds of incoming ninth graders will graduate from high school on time. (educationworld.com)