GCSEs in England have been reformed, see
the timetable of reforms.
The new 9 to 1 grade scale and old A* to G scale link at 7 and A; 4 and C; and 1 and G. See the
Grading new GCSEs
postcard for more information. In the new grading scale, the distribution of results has been split into more grades above grade 4 than above grade C on the legacy grading scale. That means that the percentage of results "in grade", eg achieving a grade 7, is typically smaller than those having previously were "in grade" for a grade A. However, the cumulative proportion at grade 7 (achieving 7 and above) is typically similar to the proportion achieving grade A and above.
For similar reasons, because there are fewer grades below a 4 than there were below a C, there are typically larger percentages "in grade" e.g. receiving a grade 1 than would have previously achieved a grade G.
Using the qualification status buttons, it is possible to view GCSE outcomes for pre-reform (referred to as "legacy") qualifications, reformed qualifications, and legacy and reformed qualifications together. Legacy qualifications are graded from A* to G and reformed qualifications are graded from 9 to 1. The legacy and reformed view shows outcomes for the three pairs of grades which align on the two scales: A/7, C/4 and G/1.
For most subjects, there was no overlap in the availability of legacy and reformed qualifications. In these cases, the legacy and reformed view will show the percentage of students achieving grades A, C and G up to the final summer the legacy qualifications were awarded and then the percentage of students achieving grades 7, 4 and 1 from the first summer reformed qualifications in that subject were awarded onwards.
The exception to this is mathematics, English language and classical subjects. For mathematics and English language, resits of legacy qualifications were available in summer 2017 - the first summer the reformed qualifications in these subjects were awarded. Therefore, the legacy and reformed view for these subjects includes the combined outcomes of legacy and reformed qualifications for summer 2017.
The classical subjects grouping include a number of subjects which are being reformed at different times. Reformed Latin and classical Greek were first awarded in summer 2018, reformed ancient history and classical civilisation were first awarded in summer 2019, and reformed biblical Hebrew will be first awarded in summer 2020. Therefore, the combined outcomes of legacy and reformed qualifications are presented in the legacy and reformed view for classical subjects for summer 2018 onwards. As the "all subjects" category contains a mix of legacy and reformed subjects the legacy and reformed view shows combined outcomes from summer 2017 onwards.
Aside from the current reform, there have been a number of changes over the time period shown which are likely to affect both outcomes and the number of learners taking qualifications in the summer. These include a reduction in the number of exam series available throughout the academic year, changes to accountability measures, changes to the importance placed on taking certain subjects (eg the introduction of the English Baccalaureate) and changes to the structure of qualifications (eg shifts from modular to linear qualifications). It should also be noted that outcomes over time might vary more in subjects taken by very small numbers of learners (since the candidature is likely to be less stable over time).