Planning Your Learning with Retrieval Practice and Spaced Review
Instead of spending all your time rereading, close your materials, try to retrieve an answer from memory, check it, and try again after a few days. This guide gives you a practical sequence for combining retrieval practice and spaced review, ways to handle material you do not yet understand, and an adjustable two-week example. The intervals are starting examples, not a single optimal schedule established by research.
The short answer
When you review something you have learned, first close your materials and try to explain it or solve a problem from memory. Then check the answer, correct mistakes, and retrieve it again after a few days. This makes it easier to distinguish “this feels familiar” from being able to produce an answer from memory.
Retrieval practice means trying to bring learned information back from memory. Spaced review means practicing the same material again after time has passed instead of repeating it all at once. In practice, combine the two. This does not guarantee the same benefit for every person, subject, or situation. Dunlosky and colleagues reviewed research on 10 learning techniques and rated practice testing and distributed practice as high-utility approaches, while also considering the range of their effects and the conditions in which they work (Dunlosky et al., 2013).
Why not just reread?
As you read, sentences can become familiar, making it feel as if you know the material. But trying to explain it without looking reveals which parts you cannot remember. In experiments by Roediger and Karpicke, university students read science passages and either reread them or took a test by writing down what they could recall. On a test after 5 minutes, the rereading condition did better; after 2 days and 1 week, students who had taken a retrieval test remembered more. These results came from the passages, participants, and test conditions in those experiments; they do not mean the same figures apply to every learning situation (Roediger & Karpicke, 2006).
Spaced review differs from cramming reviews into one session. Cepeda and colleagues synthesized 317 experiments on verbal-recall tasks and reported that the interval between study sessions and the time until the final test are jointly related to memory outcomes. Longer intervals sometimes helped when information needed to be retained for longer, but the paper does not set one interval as optimal for everyone (Cepeda et al., 2006). The schedule below is therefore a starting point to adjust to your workload and recall, not a research answer key.
Example: learning a new work procedure
Suppose you are learning an internal procedure for receiving customer requests and routing them to the right person. This is an example of a learning design created to apply retrieval practice; it is not a result from having research participants perform the same task.
**Review the material once and understand the essentials.** Find the intake fields, urgency criteria, and routing path in the procedure document. Focus on why each step is needed instead of trying to memorize the wording immediately.
**Close the material and reconstruct the sequence.** On a blank page or note, write: “When a request arrives, what do I check, and who do I send it to in each case?” Try to recall the key steps and decision criteria, not the exact phrasing.
**Check against the answer.** Reopen the source and mark omitted items or misremembered criteria in another color. Include a check of the correct criteria so you do not keep repeating an incorrect answer. Dunlosky and colleagues’ review also concludes that feedback with practice tests can aid learning and reduce the chance that incorrect answers become established ([Dunlosky et al., 2013](https://gwern.net/doc/psychology/spaced-repetition/2013-dunlosky.pdf)).
**Answer again later and apply it to a real-world case.** At the next review, answer the same question and then work through a short scenario with changed conditions, such as an urgent request or missing information. Remembering the procedure and making an actual work judgment can differ, so application questions are a supplementary way to check understanding.
Retrieval practice does not require a test sheet or an app. Writing on a blank page, explaining aloud with the book closed, answering question cards, or solving a problem and explaining the reasoning can all be retrieval practice. Reading an answer while looking at the material can help you check and relearn, but it is not the same as trying to retrieve it from memory.
Starting conditions and steps
Starting condition: Choose a small, specific review goal. Instead of an entire chapter, choose an observable goal such as “I can name three causes,” “I can reproduce the procedure’s sequence,” or “I can solve this type of problem.” Also prepare something to check your answer against: choose one reference such as lecture notes, textbook solutions, or an official procedure document.
First study session: Study the target material for about 20–40 minutes. This is an example; adjust it to the amount of material and your attention span. Mark any terms or assumptions you do not understand and clarify them first. Do not try to memorize material you have not understood.
First retrieval: Close the material and spend 3–5 minutes writing or saying the main points. A short attempt is fine. The goal is not to recall every answer perfectly at once, but to find out what you can remember right now.
Check and correct: Reopen the material, check what was wrong or missing, and restate the correct explanation once in your own words. If you find an answer you were confident about but got wrong, put that item near the top of your review list.
Schedule the next review: Mark a calendar or checklist to revisit the material, for example, the next day, a few days later, and the following week. If you can accurately explain the key steps and why they matter without hints, try making the next interval a little longer. If you omit an important item or need a hint to answer, shorten the interval or study the material again first. This is a practical rule for adjusting based on your study record, not a validated formula for optimal spacing. Adjust the schedule to your recall, exam date, or the time you will need the material at work.
Expected experience and check-in: At first, searching your memory may feel less comfortable than reading, or make you feel as though you know less than before. Retrieval practice is an activity for checking what you currently remember, rather than creating a comfortable feeling. To track progress without overstating it, briefly record the date, whether your answer was correct, where you got stuck, and whether you could apply it to an actual problem. After two weeks, see whether you can answer your original questions or similar new ones. This plan itself has not been tested as an intervention or shown to produce a measured learning effect.
If you get stuck: If nothing comes to mind, do not keep guessing for a long time. Look at one small hint, then close the material and explain it again. For a missed problem, check the explanation, say in your own words why the answer is correct, and try it again later. If you have made too many cards, keep the essential concepts and frequently used procedures first. For a complex topic you cannot understand through retrieval alone, study the explanation or examples again and make retrieval questions after you understand them.
An adjustable two-week example schedule
The schedule below is an example for reviewing one set of learning goals. The dates are convenient practice intervals, not a single optimal schedule established by research. If you are studying several topics at once, divide each into small sets and track each schedule separately.
| When | What to do | What to check |
|---|---|---|
| Day 1 | Understand the material and create 3–5 questions. Close the material and try the first retrieval. | Do the questions directly check the goal? Did you check the answers? |
| Day 2 | Answer the same questions again and correct missed items. | Distinguish recognizing yesterday’s wording from answering from memory. |
| Day 4 | Answer the questions, then solve one short new scenario or problem. | Can you apply what you remembered to a situation? |
| Day 8 | Explain the essentials or solve a problem without looking at the material first. | Record where you got stuck and relearn only that part. |
| Day 14 | Check the same goal again and decide whether another review is needed. | If you can explain the essentials and reasons without hints, try a longer interval; if you omit items or answer incorrectly, add a shorter interval. |
If you miss a scheduled day, you do not need to start over. Do a short retrieval today, record how it went, and choose a realistic next date. If you have little time to review, prioritize the core goals and items that repeatedly cause difficulty rather than treating everything equally. You can reread or summarize as needed just before an exam, but that alone does not confirm long-term recall.
References
[Dunlosky et al. (2013), review of 10 learning techniques](https://gwern.net/doc/psychology/spaced-repetition/2013-dunlosky.pdf) — Reviews the utility, implementation conditions, and limitations of practice testing and distributed practice.
[Roediger & Karpicke (2006), experiments on retrieval tests and long-term memory](https://learninglab.psych.purdue.edu/downloads/2006/2006_Roediger_Karpicke_PsychSci.pdf) — Reports two experiments using science passages, with delays of 5 minutes, 2 days, and 1 week.
[Cepeda et al. (2006), meta-analysis of distributed practice in verbal-recall tasks](https://escholarship.org/uc/item/3rr6q10c) — Reviews 317 experiments and analyzes the relationship between study intervals and the time until the final test.