I can't believe this is news. It is exceedingly obvious that the achievement gap between poor and rich students is directly related to their economic status. http://mattbruenig.com/2011/09/18/on-the-education-reform-mo...Poor children simply lead different lives than rich children due to their differential access to economic resources. Poor children have worse health and are more likely to experience negative neighborhood effects like exposure to drugs, violence, and crime. Further, their parents are more likely to work multiple jobs or irregular hours which reduces the amount of time they are able to spend with them. Poverty also increases stress both on the parents and the children. These are just a few of the consequences of economic inequality, all of which plausibly impact student success at school.