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Exam Preparation

Practice Testing for Exams: Rehearse the Real Thing

Strong evidence 5 min read Level: Beginner Reviewed October 30, 2026

Practice testing means taking mock exams under test conditions. See how to build, take and use practice tests to prepare, and where the method falls short.

Evidence rating: Strong evidence. Practice testing was rated high utility among ten study techniques in a large review (Dunlosky et al., 2013), and many lab and classroom studies find it improves later test performance compared with restudying (Roediger & Karpicke, 2006; Adesope et al., 2017). Effects are smaller when practice questions differ a lot from the real test, and results depend on whether students get feedback and wait long enough between sessions. How we rate evidence

What it is

Practice testing means answering questions the way you will on exam day, before the exam. You might use old exams, end-of-chapter questions, a teacher's review sheet or questions you write yourself. You answer without notes, then check your work.

This is a form of active recall, but aimed at the exam itself. The goal is not only to remember facts. It is to practice the whole job: reading a question, picking the right idea, writing the answer and managing time.

Researchers have studied this for over a century. In one well-known experiment, students who took a recall test on a passage remembered more a week later than students who read the passage again, even though the rereaders felt more confident (Roediger & Karpicke, 2006). A meta-analysis of many studies found a positive average effect of practice tests on later performance (Adesope et al., 2017).

Practice tests also give you information. A score and a list of misses show you where your time should go, which is hard to judge by feel.

When to use it

  • You are one to four weeks from an exam and have already studied the material at least once.
  • Your exam uses a clear format, such as multiple choice, short answer, problem solving or essays.
  • You often feel ready but then lose points on questions you thought you knew.
  • You want to practice working under time pressure.

How to apply it

  1. Find the right questions. Ask your teacher for past exams, use the end of each textbook chapter, or write questions from your notes. Match the real exam format as closely as you can.
  2. Set test conditions. Put away notes and your phone, set a timer for the real exam length and sit at a desk.
  3. Answer every question, even guesses. Mark the ones you were unsure about, even if you got them right.
  4. Grade yourself with the answer key or your textbook. Be strict. Partial understanding counts as a miss.
  5. For each miss, write why it happened: forgot a fact, misread the question, made a calculation slip, or never learned the idea.
  6. Study the gaps for a day or two, then retake similar questions. A second look at the same exact questions can hide whether you learned the idea, so swap in new ones when possible.
  7. Repeat the cycle. Take a full practice test about a week out, and shorter ones of 10 to 15 questions on other days.

Step-by-step examples

Example: a full practice exam for a 50-question biology final

  1. Eight days before the exam, print last year's final from the class website. Set a 60-minute timer.
  2. Answer all 50 questions with no notes. Circle the eight where you were guessing.
  3. Grade it. You score 38 out of 50. Looking at the 12 misses, seven are about genetics and five are about the nervous system.
  4. Spend two 30-minute sessions on Punnett squares and nerve signals, closing the book to explain each from memory.
  5. Three days later, do 15 new genetics and nervous system questions from the textbook and check whether the same mistakes repeat.

Example: short daily tests for an algebra exam

  1. Two weeks before a test, write down ten problem types from the unit, such as factoring, systems of equations and word problems.
  2. Each day, pick a mixed set of eight problems, one or two from each type, and solve them without looking at examples. Allow 20 minutes.
  3. Check the answers. If you got stuck, read the solution, then close it and redo the problem from the start.
  4. Keep a tally of how many you got right by type. The types with the lowest scores get extra problems tomorrow.

Advantages

  • It shows you what you do not know, so your study time goes where it is needed.
  • It trains the exact skill the exam asks for, including timing and format.
  • Research on testing is some of the most consistent in education science.
  • It can lower surprise and nerves because the exam format feels familiar.

Limitations

  • Good practice questions can be hard to find. Poor ones may focus on the wrong things.
  • A practice test cannot replace first learning. If you have not studied the material, a test only shows the gaps.
  • Doing the same questions again and again can lead to remembering answers instead of ideas.
  • A low score can feel discouraging. It helps to see it as information, not a verdict.

Common mistakes

  • Peeking at notes during the test, which turns it back into rereading.
  • Taking a practice test and not reviewing the misses. The review is where much of the learning happens.
  • Only practicing the topics you are already good at.
  • Skipping the timer, then running out of time on exam day.
  • Waiting until the night before to take the first practice test.

Recommended next steps

Part of the path Prepare for Exams (step 2 of 6). Next in this path: Interleaving: Mix Problem Types While You Practice.

References

  1. Roediger, H. L., & Karpicke, J. D. (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological Science, 17(3), 249-255.
  2. Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J., & Willingham, D. T. (2013). Improving students' learning with effective learning techniques: Promising directions from cognitive and educational psychology. Psychological Science in the Public Interest, 14(1), 4-58.
  3. Adesope, O. O., Trevisan, D. A., & Sundararajan, N. (2017). Rethinking the use of tests: A meta-analysis of practice testing. Review of Educational Research, 87(3), 659-701.
  4. McDaniel, M. A., Agarwal, P. K., Huelser, B. J., McDermott, K. B., & Roediger, H. L. (2011). Test-enhanced learning in a middle school science classroom: The effects of quiz frequency and placement. Journal of Educational Psychology, 103(2), 399-414.

This guide is general educational information. Study methods work differently for different people, and no method guarantees better grades or results.

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