The new Progress 8 and Attainment 8 measures to be used from summer 2016 encourage students to enter both qualifications.
The points for English will be double weighted if the student has attempted* both GCSE English Language and English Literature (or, in 2016 only, Edexcel Certificates or GCSE English). The double weighting will be applied to the better of the two grades. If double weighted, English contributes 20% of the measure, as does mathematics, while the remaining six subjects will each contribute 10%.
If the student does not take English Literature alongside English Language, then there is no double weighting of points for English achievement. The English Language result will contribute only 10% towards the Progress 8 and Attainment 8 measures, and the overall measures will only have been 90% met - in effect the student's total points from across 9 subjects will still be divided by 10 to get an average grade achieved.
However, from summer 2016 the new headline measure for English and mathematics achievement can be met without the student having attempted both language and literature.
For the Ebacc separate measure, a pupil must study both English language and English Literature, and achieve a C grade or better in at least one of these qualifications, to satisfy the English requirement (in 2016, a C in Combined English would be sufficient).
*An “attempt” for English Language or English Literature is currently defined as any result that is graded A*-G or U (but not X).