Spaced Repetition
Forget, then retrieve — that’s where the learning happens.
What the Research Says
The brain remembers things better when you review them just as you’re about to forget them. Cram everything the night before and it’s gone within a week. Revisit the same material on day one, day three, day seven, day fourteen and it sticks for months. This is the single biggest difference between students who peak in mocks and students who peak in the real exam.
Evidence Base
| Study | Finding | Impact |
|---|---|---|
| Ebbinghaus (1885) | Without revisiting, 50% of what you learn is lost within an hour and 80% within a day. | The forgetting curve is real — and steeper than most students realise. |
| Cepeda et al. (2006) | Meta-analysis of 254 studies: spaced practice beat massed practice in 259 out of 271 comparisons. | Spacing works across ages, subjects, and skills. |
| Kang (2016) | Optimal gap ≈ 10–20% of the time until the test. For a May exam, that means revisiting material every 3–6 weeks from Year 10. | You can plan exactly when to revisit a topic. |
| Sisti et al. (2007) | Neurons form stronger connections during the “almost forgotten” moment of retrieval. | Struggling to recall IS the learning, not a sign you’ve failed. |
Step-by-Step Method
- 1Learn a topic today — read the lesson, watch the video, write notes. Mark it in a diary or app with today’s date.
- 2Review in 24 hours — do a retrieval practice brain dump, or redo the knowledge check. 5–10 minutes.
- 3Review again in 3 days — if you got it right yesterday, push the gap. Repeat the retrieval.
- 4Review again in 7 days — by now the material is consolidating into long-term memory.
- 5Review again in 2–3 weeks — gap the next review to 14 days, then 30, then 60.
- 6If you fail a review — reset the schedule. Back to day 1. Don’t skip the reset — it’s the point of the system.
When you first study Buddhist beliefs, log the Four Noble Truths and the Eightfold Path in your revision diary. The next day, brain-dump them without notes. Day 3, quiz yourself again on the Pali terms — Dukkha, Tanha, Nirodha, Magga — and the specific stages of the Eightfold Path (Right Speech, Right Action, Right Livelihood etc.). By the time you review at day 14, the content is moving into long-term memory and you will recall it far more reliably than a student who crammed it the night before the paper.
After studying the Ten Commandments and their relevance to Christian ethics, schedule spaced reviews: day 1 brain-dump all ten, day 3 focus on the ones you missed (students often blank on commandments 4 and 10), day 7 test your ability to explain how each is applied in modern ethical debates (e.g. the sixth commandment “You shall not murder” in relation to Just War theory or capital punishment). Returning to the same content at increasing intervals means you will not confuse the commandments in a 12-mark evaluation question under exam pressure.
Common Pitfalls
- Reviewing too often. If it’s easy, the gap is too short. Make it harder by stretching the interval.
- Reviewing too late. If you’ve completely forgotten, you’re essentially re-learning from scratch — you lose the benefit of spacing.
- No written schedule. Spaced repetition works only if you actually do the reviews. Use a calendar, the StudyVault flashcard system, or a simple Leitner box.
- Skipping resets when you fail. If you couldn’t recall the material, you haven’t learnt it — regardless of how far through the schedule you were.
When to Use This
This is the organising principle of your whole revision year — not a technique you pull out near the exam. From the first lesson of Year 10, log every topic you cover and schedule reviews at 1 day, 3 days, 7 days, 14 days, and 30 days. The StudyVault flashcard system does this automatically via the Leitner method — questions move between five boxes with intervals of 1, 2, 4, 7, and 14 days. When a card comes up, do it. When it doesn’t, don’t.