How we verify JAMB questions and answers

1. Sourcing

Questions are drawn from past UTME examination papers and organised by the year they were set. Where a question comes from a specific exam year, that year is recorded against it, which is what lets us publish which topics a given year actually examined rather than guessing from a syllabus outline.

2. Answer verification

Every question carries a single recorded correct option and a written explanation. The explanation must justify that option on its own terms — showing the working for a calculation, or the reasoning for a conceptual question — so the answer can be checked by someone other than the person who wrote it.

3. Syllabus tagging

Each question is tagged to the syllabus topic it tests. This is what powers per-topic analytics: without an accurate topic tag, a weakness report would tell you nothing useful. Questions that cannot be confidently tagged are not used for topic-level reporting.

4. Explanation standard

An explanation has to earn its place. It is written to answer the question a candidate would actually ask, which is almost never "which option is correct" but "why is that the correct one, and why am I wrong about the others". Practically, that means:

• the correct option is stated clearly, not implied;
• the reasoning is shown, including working for numeric questions;
• the common wrong answer is addressed where it is a predictable trap.

5. Correction after publication

Any candidate can flag a question from inside the app or the practice interface. A flagged question is reviewed against the explanation and corrected if the flag is valid. Corrections propagate to every candidate, including anyone who has already answered it. We treat a flag as useful information rather than an insult — it is the cheapest quality control we have, and we would rather fix a question than defend it.