„A quarter of children from poor backgrounds fail to meet the expected attainment level at the end of primary school compared with 3 per cent from affluent backgrounds. The gap widens at 16 with just one in five children from the poorest families achieving five good GCSEs, including English and Maths, compared with three quarters from the richest families.“
NCB (Hrsg.), „Greater Expectations: Raising aspirations for our children“ (2013), S. 12