hurting a child harmful to kids quote American Psychological Association http://www.apa.org/monitor/2012/04/spanking.aspx Research contradict spanking leads to increased aggression http://www.apa.org/monitor/2012/04/spanking.aspx approve Modern psychology "The Case Against Spanking" spanking "The Case Against Spanking" American Psychological Association The American Psychological Association Modern psychology hurting a child plenty of evidence hurting a child The psychological consensus Research hurting a child approve The current status of "spanking" http://www.apa.org/monitor/2012/04/spanking.aspx http://www.apa.org/monitor/2012/04/spanking.aspx Modern psychology next time. http://www.apa.org/monitor/2012/04/spanking.aspx http://www.apa.org/monitor/2012/04/spanking.aspx Modern psychology American Psychological Association hurting a child hurting a child