The DfE has released an updated version of its Progress 8 guidance for schools for 2016, 2017 and 2018.
A short explanatory video is also available ahead of the publication of provisional Progress 8 scores next month.
Progress 8, the new secondary school accountability system, came into operation from 2016. It aims to capture the progress a pupil makes from the end of primary school to the end of secondary school. It is a value added measure, which means that pupils’ results are compared to the actual achievements of other pupils with the same prior attainment in order to give a headline indicator of school performance.