What is retrieval practice?
Retrieval practice is any activity that makes you bring information back from memory: answering questions, writing down everything you remember about a topic, or explaining it to a friend without notes. Learning researchers have studied it for decades and call the benefit the “testing effect”: material you have practised recalling is remembered better than material you only re-read.
Why does it work better than re-reading?
When you re-read, the page does the work and the material starts to feel familiar. Familiar is not the same as remembered. When you answer a question, your memory has to do the work, and each successful recall makes the next one easier. A wrong answer is useful too: it shows you a gap while there is still time to fix it.
Three ways to use it
Practice tests
Make a short test for each topic and take it without notes. Our guide on making a practice test from your notes walks through it, and the practice test maker marks it for you.
Brain dumps
Take a blank page and write everything you remember about a topic in five minutes. Then compare it with your notes and fill in what you missed.
Quizzing each other
In a study group, take turns asking questions, or run a live quiz where everyone answers on their phone at the same time.
Make it stick: space it out
Retrieval works best when it is spread over days rather than crammed into one night. Retest each topic a couple of days after the first try, then again a week later. Keep the questions you got wrong and come back to them first.
Common mistakes
- Looking at the answer too soon. Try to recall first, even if it takes a moment.
- Only testing the topics you already know. The uncomfortable ones matter most.
- Skipping the review. Checking why an answer was wrong is where much of the learning happens.