A school-wide figure of 93% describes a cohort, not your child’s understanding, exam technique, or next step. One lower IGCSE result should lead to a review of the learner’s own scripts, syllabus coverage, and working habits before any decision about tutoring or subject choices.
In 1986, Clive Charig and colleagues at the Institute of Urology in London faced a result that seemed clear until they examined the patients behind it. Their study compared treatments for kidney stones. Across all cases, one treatment appeared more successful. Yet when the researchers separated patients by stone size, the other treatment had better outcomes in both groups.
The apparent contradiction had a practical cause. The treatments had been used on different mixes of patients. One group contained more difficult cases, so its overall result concealed what happened among comparable patients. The study, published in the British Medical Journal, became a well-known example of Simpson’s paradox: an overall pattern can reverse when the relevant groups are examined separately.
A school headline and an individual IGCSE grade can create the same reasoning problem. The headline may be accurate, while still telling you little about the support one learner needs.
What the 93% figure can and cannot tell you
A high school-wide result can indicate that many candidates reached a stated threshold. It cannot show which syllabus areas your child understood, where marks were lost, how demanding their subject combination was, or whether their performance changed across papers.
The cohort may contain students taking different subjects, working at different starting points, receiving different forms of support, and carrying different learning needs. Even within one subject, an overall grade combines several kinds of performance. A student may recall content accurately but struggle to interpret command words. Another may understand the material yet leave extended responses unfinished. A third may lose marks because their evidence never reaches the conclusion the question requires.
That distinction matters because the same grade can call for very different responses.
School-level figures are useful for understanding a broad pattern. They become risky when adults use them as a verdict on one learner. The relevant question is not, “Why did my child miss the school headline?” It is, “What does my child’s own work show?”
The same caution applies to national statistics. A national results pattern cannot explain one Cambridge IGCSE grade without evidence from the learner’s papers, coursework, teacher feedback, and study routine.
Begin with the learner’s evidence
Start by gathering the material closest to the result. Look at recent tests, marked assignments, mock papers, teacher comments, revision notes, and any available breakdown by paper or topic.
Then separate the possible causes. Was knowledge missing? Did the student misunderstand what the question required? Was there enough time to finish? Did working disappear between a correct idea and the final answer? Were errors concentrated in one topic, or spread across the syllabus?
Three correct answers can still hide weak reasoning, especially when a learner has copied a method without understanding why it works. The reverse can also happen: a student may understand the concept but fail to present it in the form the mark scheme rewards. This guide to what correct answers can hide about student reasoning explains why the working matters as much as the total.
Ask the student to talk through one strong response and one weak response. Keep the conversation specific. “Show me where you became unsure” usually produces more useful information than “Why didn’t you do better?”
The goal is diagnosis, not comparison.
Match support to the actual gap
Once the pattern is visible, support can become more precise. A content gap may require direct teaching and carefully sequenced practice. Weak exam technique may call for work on command words, response structure, or timed papers. An inconsistent routine may need a realistic weekly plan. Learning support needs should shape lesson pace, format, and materials.
Curriculum fit matters here. Cambridge IGCSE support should follow the student’s subject and syllabus demands rather than rely on generic tutoring for “science” or “English.” A useful tutor match also considers current or predicted grades, goals, availability, lesson format, school reports, and any learning support needs.
Accelerate Tutors uses those details when matching families with curriculum-specific tutors. Live one-to-one lessons are available online worldwide, with in-person tuition available in Ghana. Tutor approval includes checks of qualification, reference, and safeguarding evidence before student allocation.
For families considering paid support, current fees range from GHS 240 to GHS 550 per hour depending on the programme, plus a GHS 100 one-time registration and assessment fee, effective August 2026. One-, five-, and ten-lesson prepayment options are available. Rates and payment terms can change, so families should check the current pricing page before deciding.
Turn one result into a focused plan
Return to the London study. Charig and his colleagues did not solve the contradiction by arguing over the headline percentage. They separated unlike cases and examined the factor that changed the result.
Parents can make the same move after IGCSE results. Separate the cohort figure from the learner’s evidence. Identify the subject, paper, topic, or habit that needs attention. Then choose support that addresses that specific gap.
A lower result may affect confidence, but it does not supply its own explanation. Before changing subjects, increasing lesson hours, or concluding that a student “cannot do” the work, review two or three marked pieces and write down the recurring pattern. That page of evidence is a sounder starting point than 93%.
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