Short answer
Active recall is a study method where you pull information out of memory, by answering questions or writing down what you remember, instead of reading it again. Research on retrieval practice has found that testing yourself leads to better long-term memory than rereading, which makes active recall a dependable way to prepare for school exams.
Key takeaways
- Active recall means retrieving ideas from memory, for example by answering questions with the book closed.
- Roediger and Karpicke (2006) found that students who were tested on a passage remembered more after a week than students who restudied it.
- Karpicke and Blunt (2011) found that retrieval practice beat concept mapping even on questions that asked students to make inferences.
- Active recall feels harder than rereading, and that effort is part of why it works.
- Blank-page recall, self-made questions and chapter practice papers all count as active recall.
What is active recall?
Active recall is the act of bringing an idea back from memory without looking at it. Answering a question with the book shut, writing a definition from memory or explaining a process aloud are all active recall. Rereading notes is not, because the answer is already in front of you.
Researchers usually call this retrieval practice, and the benefit it produces is known as the testing effect. The idea is simple: a test is not only a way to measure what someone knows, it is also a way to learn.
Why does active recall work better than rereading?
Active recall works better than rereading because each act of retrieval makes the memory easier to find again later. Several well-known studies point the same way.
Roediger and Karpicke (2006) had students study prose passages, then either restudy them or take recall tests on them. On a test five minutes later, restudying came out ahead. On tests two days and one week later, the students who had practiced recall remembered substantially more, even though the restudy group felt more confident.
Karpicke and Blunt (2011) compared retrieval practice with building concept maps from a science text. Retrieval practice produced more learning, including on questions that tested comprehension and asked students to make inferences, so the benefit is not limited to memorizing facts. In a broad review, Dunlosky and colleagues (2013) rated practice testing as one of only two high-utility study techniques, and recommended it in place of rereading.
What are the best active recall techniques for school subjects?
The best active recall techniques are the ones that match the subject and the stage of revision. Any method counts as long as the answer comes from memory before it is checked.
| Technique | How it works | When to use it |
|---|---|---|
| Blank-page recall | Write everything you remember about a topic, then check the book | Right after studying a chapter |
| Question from headings | Turn each heading into a question and answer it with the book closed | While working through a chapter |
| End-of-chapter questions | Answer the textbook's own questions before looking anything up | After finishing a chapter |
| Self-made flashcards | Question on one side, answer on the other; answer before flipping | Terms, formulas, dates, definitions |
| Explain it aloud | Teach the idea in plain words to someone, or to an empty room | Processes and concepts, such as a reaction or a proof |
| Practice papers | Answer a full set of questions under exam conditions | In the weeks before an exam |
Different subjects lean on different techniques. In science, explaining a process aloud, such as how a metal reacts with an acid, shows whether the steps are really understood. In history or geography, blank-page recall of causes, events and examples works well. In languages, self-made cards for vocabulary sit alongside writing short answers from memory.
Whatever the subject, the rule is the same: try first, check second. A wrong answer caught during practice is far cheaper than one discovered in the exam hall.
How do you use the active recall study method with one chapter?
Use the active recall study method by adding short recall checks at three points: during reading, straight after, and a few days later.
- During reading. After each section, close the book and answer that section's heading as a question.
- Straight after. Do a blank-page recall of the whole chapter, then fill gaps in a different color so they stand out.
- A few days later. Answer the end-of-chapter questions or a short practice paper from memory, then check every answer.
- Before the exam. Return to the questions you got wrong, not the ones you already know.
For a full walkthrough of reading a chapter this way, see how to study a textbook chapter.
What mistakes make active recall less useful?
The most common mistake is peeking: glancing at the answer before really trying. A few others are worth avoiding too.
- Only easy questions. Recalling what is already known feels good but teaches little. Include the questions that cause trouble.
- No checking. Recall without checking can leave a wrong answer in place. Always compare with the book afterwards.
- Recalling once, then stopping. A single recall session helps, but coming back to the same material on later days helps more.
- Copying the book's words. If an answer only works in the textbook's exact phrasing, the idea may not be understood yet.
How do active recall and spaced repetition fit together?
Active recall is what you do in a review session, and spaced repetition decides when those sessions happen. Dunlosky and colleagues (2013) rated both practice testing and distributed practice as high utility, so combining them is a sensible default.
In practice, that means testing yourself on a chapter soon after learning it, then again after a few days and again after a week or two. Our spaced repetition guide includes a simple schedule, and more methods are collected in the study skills guides.
How can StudyMate support active recall?
StudyMate AI's practice tests turn any chapter into a practice paper on demand, at the difficulty the student chooses, with an instant, detailed evaluation rather than just a score. While reading, the "Quiz me on this" follow-up gives a quick recall check on the idea just explained.
Frequently Asked Questions
Is active recall the same as using flashcards?
Flashcards are one form of active recall, as long as the answer is attempted before the card is flipped. Active recall is broader: blank-page recall, explaining aloud and practice papers work the same way and suit topics that do not fit on a card.
Why does active recall feel harder than rereading?
Because it is harder: the answer has to be found rather than recognized. In Roediger and Karpicke (2006), students who restudied felt more confident, yet the tested students remembered more a week later. The struggle is a normal part of the method, not a sign it is failing.
Does active recall work for maths?
Yes, in the form of solving problems without looking at a worked example first. Recall the method, attempt the problem, then compare with the solution. Recalling definitions and properties from memory helps too.
How long should an active recall session be?
Short sessions work well: 15 to 30 minutes on one chapter is a reasonable starting point. Several short sessions on different days tend to be more useful than one long one.
Sources
- 1Roediger & Karpicke, Psychological Science (2006). Test-Enhanced Learning
- 2Karpicke & Blunt, Science (2011). Retrieval Practice Produces More Learning than Elaborative Studying with Concept Mapping
- 3Dunlosky, Rawson, Marsh, Nathan & Willingham, Psychological Science in the Public Interest (2013). Improving Students' Learning With Effective Learning Techniques