If you spend hours highlighting textbooks or re-reading notes only to forget everything during the exam, your study techniques need an upgrade. Passive reading creates an “illusion of competence.” To build long-term memory, two evidence-based strategies stand out: Active Recall and Spaced Repetition.
In this article, we break down how both methods work, how they compare, and how to combine them for maximum exam success.
What is Active Recall?
Active Recall is the process of retrieving information from your brain without looking at your notes. Instead of passively reading a chapter, you test yourself to force memory retrieval.
How to Practice Active Recall:
- The Blurting Method: Read a page, close the book, and write down everything you remember on a blank sheet. Compare with the textbook to find gaps.
- Flashcards: Write a question on the front and the answer on the back using physical cards or digital tools like Anki.
- Practice Questions: Solve past paper questions before reviewing the answers.
What is Spaced Repetition?
Spaced Repetition combats the “Ebbinghaus Forgetting Curve,” which proves that humans forget over 50% of new information within 24 hours unless it is reviewed. Spaced Repetition involves reviewing information at gradually increasing intervals.
Example Spaced Repetition Schedule:
- First Review: 1 day after learning
- Second Review: 3 days later
- Third Review: 7 days later
- Fourth Review: 14 days later
- Fifth Review: 30 days later
Active Recall vs. Spaced Repetition: Comparison
| Feature | Active Recall | Spaced Repetition |
| Core Concept | Testing yourself to retrieve memory | Timing reviews to prevent forgetting |
| Primary Benefit | Deepens understanding & concept mastery | Ensures long-term retention |
| Best Used For | Learning complex topics & formulas | Memorizing vocabulary, facts, & definitions |
The Verdict: How to Combine Both
You do not need to choose between them—they work best together. Use Active Recall to test your knowledge, and schedule those self-tests using Spaced Repetition intervals.