How to use practice tests effectively (and why they work)
TutorAura guide · Updated
Taking practice tests is one of the most effective ways to study, not just a way to check what you know. In a large review of learning techniques, practice testing was one of only two methods rated as having high usefulness for students (Dunlosky et al., 2013), and a meta-analysis of hundreds of comparisons found that practice testing improved learning compared with restudying (Adesope et al., 2017).
But how you use practice tests matters. A test you take and never review teaches you far less than one you analyse properly.
Key takeaways
- Recalling answers from memory strengthens learning more than rereading.
- Review every mistake and log why it happened.
- Use full timed tests to diagnose and measure; use short quizzes to learn.
- Space tests out: every 2 to 3 weeks for full tests, more often for short quizzes.
Why testing yourself works
When you retrieve an answer from memory, you strengthen the memory and make it easier to retrieve next time. In a well-known experiment, students who studied a passage once and then took recall tests remembered more a week later than students who studied it repeatedly, even though the restudy group felt more confident (Roediger and Karpicke, 2006).
Tests also reveal what you don't know. Rereading notes feels productive because the material looks familiar, but familiarity isn't the same as being able to answer a question. See active recall.
Two kinds of practice test
| Full timed test | Short quiz | |
|---|---|---|
| Purpose | Diagnose weaknesses, practise pacing, measure progress | Learn and strengthen specific material |
| Length | Same as the real exam | 5 to 20 questions |
| How often | Every 2 to 3 weeks | Several times a week |
| Conditions | Exam conditions: timed, no notes | Relaxed, with immediate feedback |
Most of your learning happens in short quizzes; full tests tell you where to aim them.
How to review a practice test
- Mark it the same day, while you remember your thinking.
- For each mistake, decide the cause: didn't know it, misread or slipped, or ran out of time.
- Write one line per mistake in a log: the topic, the cause and what to do next time.
- Learn the missing content, then try similar questions.
- Redo the questions you missed a few days later, without looking at the answers.
- Also review lucky guesses: questions you got right but weren't sure about.
The log becomes your most valuable revision document.
Common mistakes
- Taking test after test without review. You practise your mistakes instead of fixing them.
- Only taking full tests. They're long and give feedback slowly; short quizzes are more efficient for learning.
- Looking at answers too soon. Struggle a little first; the effort of retrieving is what helps.
- Testing only what you already know. Aim quizzes at your weak topics.
- Untimed full tests. Pacing is a skill; practise it under real conditions.
Using practice tests for specific exams
- Digital SAT and PSAT: use the College Board's tests in Bluebook and our free Digital SAT practice tests, which are timed and adaptive like the real exam. See how to improve your SAT score.
- GCSE and IGCSE: use past papers from your exam board and mark them with the mark scheme. See how to revise for GCSE Maths.
- Class tests: make your own quizzes from your notes, or ask a study partner or an AI tutor to quiz you.
Frequently asked questions
How many practice tests should I take before an exam?
Quality matters more than number. A full timed test every 2 to 3 weeks, carefully reviewed, plus frequent short quizzes on weak topics, works well.
Are practice tests better than rereading notes?
Yes. Research consistently finds that testing yourself leads to better long-term learning than rereading.
Should I time my practice tests?
Time full practice tests to build pacing. Short learning quizzes can be untimed with immediate feedback.
What should I do after a practice test?
Mark it the same day, log the cause of each mistake, learn the missing content and redo the missed questions a few days later.
Sources
- Improving Students' Learning With Effective Learning Techniques. Psychological Science in the Public Interest (Dunlosky et al.), 2013.
- Rethinking the Use of Tests: A Meta-Analysis of Practice Testing. Review of Educational Research (Adesope, Trevisan and Sundararajan), 2017.
- Test-Enhanced Learning: Taking Memory Tests Improves Long-Term Retention. Psychological Science (Roediger and Karpicke), 2006.
Keep reading
Active recall: the study technique that beats rereading
Why testing yourself beats rereading, and five practical ways to do it for any subject.
How to study for a test: methods that actually work
Test yourself, spread it out and mix topics: a research-backed method with a 7-day plan and a one-day emergency plan.
Free Digital SAT practice tests
A full-length, timed, adaptive practice test and section tests, free with no sign-up.
Spaced repetition: how to remember more by studying less at once
Why spreading study over time beats cramming, and a simple schedule you can start today.