Not All Revision Techniques Are Equal
A major study by Dunlosky et al. (2013) evaluated the effectiveness of common study techniques. The results were surprising: many popular methods are largely ineffective. Here's a ranking from most to least effective, based on the scientific evidence.
Tier 1: Highly Effective
These techniques have strong evidence supporting their effectiveness for long-term retention and exam performance.
1. Practice Testing (Active Recall)
Testing yourself on material is the single most effective revision technique. It strengthens memory retrieval pathways and helps you identify gaps in your knowledge. How to use it: After studying a topic, close your notes and answer questions from memory. Use StudyVector's practice questions for instant access to thousands of exam-style questions.
2. Distributed Practice (Spaced Repetition)
Spreading revision over time (rather than cramming) dramatically improves long-term retention. How to use it: Plan to revisit each topic at increasing intervals — after 1 day, 3 days, 1 week, then 2 weeks. StudyVector automates this scheduling.
Tier 2: Moderately Effective
Good techniques that work well when combined with Tier 1 methods.
3. Interleaved Practice
Mixing different topics in a single study session forces your brain to distinguish between problem types. How to use it: Instead of studying trigonometry for an hour, do 20 minutes of trig, 20 minutes of calculus, and 20 minutes of probability.
4. Elaborative Interrogation
Asking 'why?' and 'how?' deepens understanding. How to use it: For every fact or formula, ask yourself why it works. Try to explain the reasoning behind it. If you can't, you don't truly understand it.
Tier 3: Low Effectiveness
Popular but surprisingly ineffective methods.
5. Highlighting and Underlining
Feels productive but doesn't create strong memories. The act of highlighting doesn't require your brain to process the information deeply. Verdict: Only useful as a first pass to identify key information that you'll later test yourself on.
6. Re-reading Notes
The most popular and one of the least effective methods. Re-reading creates familiarity (which feels like knowledge) but doesn't strengthen recall. Verdict: Replace with practice testing.
7. Summarising
Better than re-reading but less effective than practice testing. Only useful if you summarise from memory rather than copying from your notes.
The Best Strategy: Combine Tier 1 Techniques
The most effective revision combines practice testing with spaced repetition. StudyVector builds both of these into every study session automatically. Start using evidence-based revision today.