Study tips
Most students know they should study for exams. The problem is knowing how. You sit down, open your notes, read a few pages, and an hour later you realise nothing has stuck. You are not alone. A 2009 survey by Karpicke, Butler, and Roediger (Memory, 17(4)) found that the overwhelming majority of students default to re-reading as their primary strategy, despite decades of evidence that it barely works. Re-reading feels productive. It is not.
This guide covers how to study for exams using methods that hold up under scrutiny. No colour-coded highlighter systems required.
Before you open a single textbook, map out how much time you have and what you need to cover. List every topic on the syllabus, assign each one to a day, and spread it all out. Cepeda et al. (2006) reviewed 254 studies on the spacing effect and found it improved long-term retention in nearly all of them (Psychological Bulletin, 132(3)). Three hours spread over three days will almost always outperform three hours the night before.
It does not have to be fancy. Block out your commitments, find the gaps, fill them. Spreadsheet, wall calendar, whatever. The point is a written plan, not a vague intention to "do some revision later."
Close your notes. Write down everything you remember. Check what you missed. That is active recall, and it should feel difficult. If it feels easy, it is probably not working. Karpicke and Blunt (2011) tested this head-to-head: retrieval practice beat re-reading and concept mapping by roughly 50% on a test one week later (Science, 331(6018)). Not a marginal edge. The difference between remembering the content and staring at a blank exam booklet.
A few ways to build it in:
Four hours at a desk is not four hours of studying. After roughly 45 minutes, attention drops off hard. Work in blocks of 25 to 50 minutes with short breaks between them. During breaks, step away from the screen. Scrolling your phone is not rest. It is just different input fighting for the same limited attention.
Studying one subject all day feels efficient. It also makes you worse at exams. Interleaving, mixing subjects or problem types in a single session, forces you to practise choosing the right approach, not just executing one on repeat. Rohrer and Taylor (2007) found interleaved practice significantly outperformed blocked practice on later tests (Instructional Science, 35(6)).
In a real exam, nobody labels the questions by topic. You have to identify the problem type and solve it. Practise only one type at a time and that identification step never develops. Students freeze under pressure not because they did not know the material, but because they never learned to recognise which bit of it to reach for.
Sleep moves information from short-term to long-term memory. Cut it short and you undo the work you just put in. Walker and Stickgold (2006) showed that one night of sleep deprivation can reduce new memory formation by up to 40% (Nature Reviews Neuroscience). An all-nighter does not make you more prepared. It makes you slower, foggier, and more likely to blank on things you genuinely knew twelve hours earlier.
Seven to eight hours. If your schedule is so tight that sleep feels like a luxury, the problem is your plan. Go back to step one.
At the end of each session, take two minutes to note what felt solid and what did not. Move the weak topics earlier in your plan. Without this step, you end up spending half your time on material you already know while the stuff that will actually sink you sits untouched. Most students skip it. Most students also feel "surprised" by their results.
Space it out, test yourself, work in blocks, mix your subjects, sleep. That is it. The students who do well in exams are not smarter or more disciplined. They just stopped confusing effort with progress. Cramming feels like studying. It is mostly panic with a textbook open.
If the planning part is what puts you off, No All-Nighters handles it. Add your deadlines and free hours, and it builds a balanced revision schedule across the week. 14-day free trial, no commitment.