Psychology
Why Spaced Repetition Improves Long-Term Memory Retention
Quick fact
Spaced repetition can more than double long-term retention compared to massed practice (cramming) for the same total study time, as demonstrated in numerous cognitive psychology studies.
Why this is interesting
You know the frustration of cramming for a test and forgetting everything a week later? What if you could learn the same material in less total time and remember it for months or years?