This is a silly question, but you might not think so looking at the revised data published by the DfE on the 2022 results for STEM subjects. A level and other 16 to 18 results: 2022 (revised) – GOV.UK (www.gov.uk)
If you look at the percentages gaining the top two grades of A* and A grade, then you might be misled into reaching this conclusion. After all, only 34.4% of those taking biology achieved those grades, compared with 39% in Physics and 38.6% in Chemistry.
The answer lies by also looking at the data for Further mathematics, where 67.8% achieved the top two grades. But there were only just over 14,000 entrants, and 99% achieved a grade from A* to E.
Subjects can try and match each other for difficulty, and so they should, as the amount of achievement needed to achieve the same result should be proportional to the effort required. However, that approach cannot compensate for entry policies. Some subjects seem to have more open entry policies than others. The gateway may be at the start of the course, where only those likely to be successful are selected, as may be the case in Further Mathematics courses, or at the point of entry into the examination, where only those needing the subject for further study and likely to achieve a god grade are entered.
Assuming that computer studies isn’t that much more challenging to those that have studied it for two years than those studying physics for two years, it would seem computer studies has a longer tail than Further Mathematics.
Then there is the issue of teacher supply to consider. How far does their ability to attract staff result in the higher Average Point Score (APS) achieved by private schools over other institutions, and how far does the fact the general Further Education colleges have the lowest APS reflect their staffing or the students that they receive from schools, and the adults engaging in lifelong learning?
And why are the APS scores for ‘A’ levels lower in the Midlands regions than in London and the South East, where there is generally thought to be more of a teacher recruitment crisis. Could the greater incidence of private schools in the latter two regions be part of the answer?
The London Borough of Sutton and Buckinghamshire both rank amongst the highest placed local authorities for A level APS outcomes. Both have selective secondary education. However, Slough, also with selective secondary schools has a lower APS than either Surrey or Oxfordshire that are both non-selective local authorities, although with a significant number of private schools located within their boundaries.
Interpreting examination results isn’t easy, due to the multiple factors that affect the outcomes. Best wishes to the 2023 cohort as they enter the final lap before the start of their examination season. May the travails of the covid pandemic be behind them as they come to the final point of their school or college careers.