The Social Mobility Commission said poorer pupils were often overtaken by their better-off peers even if they had outperformed them at primary school.
The gap, which was most apparent in poor white children, has widened every year since 2012.
The Department for Education accepted it had “more to do” on the issue.
Social mobility: Poorer children ‘making less progress’
Poorer pupils are increasingly making less progress at secondary school in England compared with their more affluent peers, a study says.
Fuente: 27 February 2017 From the section Education & Family
Fuente: 27 February 2017 From the section Education & Family