Revision, Study and Revision During Exams: What Is the Difference?

One thing that often gets confused in exam preparation is the difference between revision and study. They are not the same, and they happen at different points in the academic year.

You revise throughout the year.

Revision is the work you do throughout the term and throughout the year. That is why having a revision timetable matters. Your revision periods are generally shorter. You regularly go back to work you have already covered, work with the information again, and give your brain repeated opportunities to retrieve it. It is about regular exposure to the work, not spending hours every day revising every subject. Over time, this moves learning from short-term memory to longer-term memory.

Then, as exams get closer, you study.

Study is usually more intensive and happens in the two to three weeks before exams. Your study periods are longer because an exam is coming up, and you now need to focus your preparation on applying what you've learned. But you are not starting from the beginning. You are solidifying the revision you have already been doing throughout the term or year. This is where you spend more concentrated time working through your subjects, identifying what still needs attention and preparing for what you will actually be expected to do in the examination.

And then you get to the examination period.

During your exams, you go back to revision. This is not the time to overload yourself with hours and hours of work. Your brain needs cognitive capacity for the examination itself. So your revision during the examination period should be about keeping your brain going and reviewing the work, rather than trying to do intensive study all over again. How much time you spend will depend on your schedule and what you have coming up. Some days you may have more time available than others. The important thing is that you are reviewing without exhausting yourself before you even get into the exam room.

Why all three matter

Revision, study and revision during exams each have a different purpose — and understanding the difference helps you prepare more effectively.

Revision throughout the year helps you build and maintain learning through regular retrieval and repeated exposure. Study before exams gives you the opportunity to work more intensively with what you have learned, identify gaps, practise applying your knowledge and prepare specifically for the demands of the examination. Revision during the examination period then helps you keep information accessible without using up the cognitive capacity you need to perform in the exam itself. 

The three therefore work together. Revision builds the foundation, study strengthens and applies it, and revision during exams keeps it active. When you leave preparation until the examination period, you try to do all three at once, often under much more pressure. The aim is not to study more. It is to use the right kind of preparation at the right time.

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