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Why an IB Chemistry Predicted Grade Can Differ from the Final Result

When the 2022 IB results were released, several students reported a final grade 7 in Chemistry even though their school-based predicted grades had been lower. Their messages were encouraging, but they also illustrated an important distinction between predicted and final results.

Predicted grades are professional estimates produced by schools. Assessment practices, internal tests, evidence requirements, and grade boundaries can vary, while the final IB result is based on the programme's external and moderated assessment process. A difference does not automatically mean that either result was careless or unfair.

Students should treat a predicted grade as one source of evidence, not a complete measure of ability. A lower prediction can identify weaknesses, but it can also motivate focused preparation that later produces a stronger final result.

The most useful response is to ask what evidence supports the prediction, compare performance across question types, correct recurring errors, and continue practising under timed conditions. University applicants should also check how each institution uses predicted and final grades, because requirements differ by programme and admission cycle.