The Science of Spaced Repetition
Evidence-based learning technique backed by cognitive science. Learn optimal review intervals and implementation strategies for maximum retention.
The Science of Spaced Repetition
Imagine if you could remember 95% of what you study, even months later. That's the power of spaced repetition—the most scientifically validated learning technique ever discovered.
What is Spaced Repetition?
Spaced repetition is a learning technique that involves reviewing information at increasing intervals over time. Instead of cramming all at once, you spread out your review sessions in a scientifically optimized pattern.
The Science:
Research by Hermann Ebbinghaus in 1885 revealed the "forgetting curve"—we forget approximately 70% of new information within 24 hours unless we review it. However, each time we successfully recall information, the forgetting curve flattens, allowing us to remember for longer periods.
The Optimal Review Schedule
Based on cognitive science research, here's the most effective review pattern:
- Initial Learning: Study the material thoroughly
- First Review: 1 day later
- Second Review: 3 days after first review
- Third Review: 7 days after second review
- Fourth Review: 14 days after third review
- Fifth Review: 30 days after fourth review
Why It Works
- Fights the Forgetting Curve: Reviews happen just before you're about to forget
- Strengthens Neural Pathways: Each recall makes memories more permanent
- Efficient Use of Time: Focus energy when needed most
- Long-Term Retention: Moves information to long-term memory
Implementing for Test Prep
Here's how to use spaced repetition for SHSAT, ISEE, SSAT, or any standardized test:
For Vocabulary:
- Day 1: Learn 20 new words
- Day 2: Review yesterday's 20 words, learn 20 new words
- Day 4: Review Day 1 words (2nd time)
- Day 5: Review Day 2 words (2nd time), Day 1 words (3rd time)
- Continue pattern...
StudyShark Integration:
Our vocabulary practice system uses spaced repetition automatically! Words you get wrong appear more frequently, while mastered words appear less often. The system tracks your progress and optimizes review timing for you.
For Math Concepts:
- Day 1: Learn ratios and proportions
- Day 2: Review ratios, learn percentages
- Day 5: Review ratios again
- Day 12: Final review of ratios
Common Mistakes to Avoid
- Reviewing too soon: If it's too easy, you're wasting time
- Reviewing too late: If you've completely forgotten, you have to relearn
- Passive review: Must actively recall, not just re-read
- Skipping difficult items: These need more frequent review
Practical Tools
- Physical flashcards: Use the Leitner box system
- Digital apps: Anki, Quizlet with spaced repetition mode
- StudyShark: Built-in spaced repetition for vocabulary
- Notebook: Create review schedules manually
Action Steps
- Identify what you need to memorize (vocabulary, formulas, concepts)
- Create a review schedule or use automated tools
- Commit to the system for at least 30 days
- Track your retention rate to see improvement
- Adjust intervals based on difficulty
Bottom line: Spaced repetition isn't just better than cramming—it's up to 300% more effective. Start using it today and watch your retention soar!
Ready to put this into practice?
Apply what you've learned with our interactive practice tools