Exam Preparation: What the Evidence Supports

Exam preparation advice is abundant and mostly unexamined; a smaller set has actual evidence.

What works

Practice testing under conditions resembling the exam, which combines retrieval practice with reduced context mismatch at recall. Spaced study across weeks rather than concentrated at the end. Interleaving topics. Explaining material without notes. Working past papers to time. And sleep, since consolidation happens overnight and the night before an exam is a poor time to remove it.

What does not

Rereading notes. Highlighting. Recopying. Studying only difficult material in isolation, since discrimination between topics is often what the exam tests. Cramming, which improves immediate performance and worsens retention — so it works only if you never need the material again, which is occasionally true and usually not.

The final week and the exam itself

Consolidate rather than acquire: retrieval practice on what you have covered, full past papers to time, and targeted work on the gaps those reveal. Attempting substantial new material in the final days generally displaces consolidation of what you already know. Protect sleep, since a sleep-deprived performance loses more than the extra hours gain. And manage arousal: moderate levels help, high levels impair retrieval specifically, which is why well-prepared people blank. Over-learning the material most likely to be needed first helps, since a smooth start reduces arousal for the rest.

A note on Cognicept

We publish this blog on the Cognicept official website, so treat anything we say about our own product as coming from an interested party. Cognicept is a liquid dropper supplement taken daily, and it makes no claim to treat, cure or prevent memory loss, dementia or any other condition. It also has a documented verification problem we cover in our reviews and complaints report.