Published

April 27, 2026

How to Use Practice Exams to Study: A Science-Based Guide for University Students

Direct answer

To use practice exams effectively, complete them under timed, exam-like conditions without your notes, then review every error by identifying the specific concept you missed and re-studying it before testing yourself again. Doing practice exams this way consistently produces stronger retention and higher exam scores than any passive review method.

Knowing how to use practice exams is one of the highest-leverage skills a university student can develop. A 2013 review of ten study techniques by Dunlosky and colleagues rated practice testing as one of the two most useful strategies, well ahead of rereading, highlighting, and summarising, and a 2011 study in Science by Karpicke and Blunt found that retrieval practice produced better learning than building concept maps. Yet most students either skip practice exams entirely, or use them incorrectly and miss most of the benefit.

This guide explains the science behind why practice exams work, exactly how to use them at every stage of exam preparation, and how to review your answers in the way that actually drives improvement.

Why practice exams are the most effective study tool

Question: What makes practice exams more effective than other study methods?

Answer: Practice exams force active retrieval, which strengthens memory far more than passive review because retrieving information is harder than recognising it, and that difficulty is exactly what drives learning.

When you reread your notes or highlight a textbook, your brain recognises the information and generates a feeling of familiarity. That feeling is easy to mistake for learning. But recognition and retrieval are completely different cognitive processes. In an exam, you are asked to retrieve information from scratch with no cues in front of you. Students who practised recognition by rereading are often shocked to find they cannot do this under exam conditions.

Practice exams replicate the retrieval process of the actual exam. Every time you successfully pull information from memory, the neural pathways associated with that knowledge become stronger and more durable. Every question you get wrong reveals a gap that passive study would have hidden. This dual mechanism (strengthening what you know, exposing what you do not) is why practice exams produce results that other methods cannot match.

This principle is the same one behind active recall. In a 2006 study by Roediger and Karpicke, students who practised recalling a passage remembered more of it a week later than students who reread it. Practice exams are simply the most structured and realistic form of active recall available to university students.

When to use practice exams during exam preparation

Question: At what point in your study plan should you start doing practice exams?

Answer: Earlier than most students expect. You do not need to finish studying before taking a practice exam, and waiting until you feel ready often means you never use them at all.

Most students treat practice exams as a final check at the end of their preparation, something to do in the last day or two before the real thing. This is a mistake. Practice exams are most powerful when used throughout the study process, not only at the end.

Early preparation: the pre-test

Taking a practice exam before you have studied the material thoroughly takes advantage of what researchers call the pretesting effect. Even when you get answers wrong, the effort of trying to retrieve something you have not yet studied can make the subsequent learning of that content stick better. Studies of pre-testing have found that attempting questions before a lesson can improve later memory for that material. A short pre-test at the start of each topic is a simple way to use this effect.

Mid-preparation: diagnostic testing

Once you have studied a topic, take a partial practice exam (or a full past paper if one is available) to identify your weak areas. This is the most valuable phase because it reveals the exact concepts that need more study time, preventing you from spending equal time on things you already know well. Students who use this diagnostic approach consistently outperform those who study topics in fixed equal blocks regardless of their actual performance.

Final preparation: timed simulation

In the final week before the exam, complete at least one full practice exam under strict timed conditions with no notes, no phone, and no interruptions. This is not just content review. It is practice at the cognitive demands of the exam itself: time management, working under pressure, deciding how long to spend on each question, and maintaining concentration across a full paper. These skills require specific practice, and they do not develop from reading.

How to use practice exams correctly: the conditions that matter

Question: Does it matter how you take a practice exam, or is answering the questions enough?

Answer: Conditions matter enormously. The closer your practice environment matches the real exam, the more effective the practice will be.

The most common mistake students make is taking practice exams with their notes open, pausing to look up answers, and giving themselves unlimited time. This turns a retrieval exercise into a recognition exercise, which defeats the entire point. If you know the answer is on page 47 of your notes, your brain does not need to retrieve anything. It just needs to navigate.

Correct practice exam conditions

All notes and textbooks closed
Timer set to the real exam duration
Phone on silent and out of reach
Writing answers as you would in the real exam
No pausing to look up answers mid-exam

Common mistakes that reduce effectiveness

Using notes to help answer questions as you go
Taking unlimited time without any pressure
Only attempting questions you already feel confident about
Skipping the review phase after finishing
Only doing practice exams in the final 48 hours

If you are genuinely stuck on a question, make your best attempt and mark it for careful review. The struggle itself is part of the learning. A 2017 review of research on learning from errors by Janet Metcalfe concludes that making an attempt, getting it wrong, and then seeing the correct answer can help you learn that answer, rather than locking the error in.

How to review a practice exam to maximise learning

Question: What should you do after finishing a practice exam?

Answer: Reviewing your errors is where the majority of the learning actually happens. Skipping this step reduces practice exams to a confidence check rather than a learning tool.

After completing a practice exam, most students glance at their score, feel good or bad about it, and move on. This is one of the most wasteful habits in academic study. The score itself is largely irrelevant. What matters is understanding precisely why you got each question wrong, and what you need to do differently.

If you want a more detailed process for this part, use the error log method for reviewing practice test mistakes. It turns every wrong answer into a topic, mistake type, correction, and follow-up review.

Step 1: Categorise every error

For every question you got wrong, got right by guessing, or felt uncertain about, identify whether the error came from a knowledge gap (you did not know the content), a comprehension gap (you misunderstood the question), or a process error (you knew the concept but applied it incorrectly under time pressure). Each type of error requires a different response.

Step 2: Return to the source material

For knowledge gaps, go back to your notes or textbook and study the relevant concept in depth. Do not just read the correct answer and move on. Understand why the correct answer is correct and why the alternatives are wrong. For quantitative subjects, rework the problem from scratch without looking at the solution, then check your steps against the mark scheme.

Step 3: Re-test within 24 to 48 hours

After studying the concepts behind your errors, test yourself on them again within 24 to 48 hours. This short-interval re-testing is the core of what makes spaced repetition so effective. The goal is to catch the concept before it fades and reinforce it at exactly the right moment to drive long-term retention.

Where to find practice exams and past papers

Question: How do you find good practice exams for your course?

Answer: Past papers from your own institution are the most valuable source, but there are several others worth using.

Past papers from your institution

Your university library or department website will often have past exam papers going back several years. These are the highest-quality practice resource available because they reflect the exact format, difficulty, and question style your examiner uses. If past papers are not publicly posted, ask your lecturer directly. Many will share them or point you to a student resource portal.

Textbook end-of-chapter questions

For subjects without easily available past papers, textbook chapter tests are the next best option. Work through them in exam-like conditions, covering the answer key until you have committed to a response. Many textbooks also have companion websites with additional practice questions.

Self-generated practice questions

Creating your own practice questions from lecture notes and readings is an underused technique that produces excellent results. The act of formulating a question forces you to identify what is genuinely important and testable in the material, which is itself a powerful form of active learning. Write questions in the style of your exam (multiple choice, short answer, or essay), then answer them from memory a day or two later.

How to build practice exams into your study schedule

Question: How often should you do practice exams, and how do they fit into a study plan?

Answer: Use practice exams at least once per topic block, then add full timed simulations in the final week. Quality of review always matters more than quantity of papers completed.

For most university courses, the most effective schedule is to do short practice tests (5 to 15 questions) after studying each major topic, one or two mid-preparation full papers to diagnose overall gaps, and at least one or two timed full simulations in the final week before the exam.

This integrates naturally with a structured study schedule. If you have a detailed revision plan built around your exam dates, you can allocate specific practice exam sessions the same way you allocate study blocks for each topic. For guidance on building that structure, see our guide on how to study for exams.

How to put this into practice

Question: What does an effective practice exam session look like step by step?

Answer: Follow this sequence for every practice exam session to extract the maximum learning value.

Prepare your environment (5 minutes). Clear your desk of notes and textbooks. Set a timer for the real exam duration. Put your phone on silent in another room or face-down out of reach. Treat this session as the real exam from the moment you start.
Complete the paper under timed conditions. Work through every question in order, marking ones you are unsure about but not stopping to look anything up. If you finish early, review your answers before the timer ends, just as you would in the real exam.
Mark your answers immediately (10-15 minutes). Use the mark scheme or answer key to score your responses. Do not adjust answers you gave before checking. Note every question you got wrong, guessed correctly, or felt unsure about even if you got it right.
Categorise every error (10 minutes). For each flagged question, determine whether the issue was a knowledge gap, a comprehension error, or a process mistake. Write this down. This categorisation tells you exactly where to focus your next study block.
Study the specific gaps (30-60 minutes). Return to your notes or textbook and study only the concepts behind your errors. For maths or science, rework each problem type from scratch. For essay or short-answer subjects, outline the correct structure for your missed answers.
Re-test within 24 to 48 hours. Before moving on, test yourself on the specific concepts you got wrong. This can be a short self-quiz, a set of flashcard questions, or a targeted mini-test. The re-test is the step most students skip, and it is the step that turns error identification into durable learning.

How Sidetracked Day helps you get more from practice exams

The main challenge with practice exams is not finding them. It is knowing what to do with what you find out. Most students identify that they got something wrong, feel bad about it, and move on without any structured plan to close the gap. Sidetracked Day solves exactly this problem.

Sidetracked Day adapts its interface in real time based on how you are actually performing, not how the average student performs. When you use it alongside practice exams, it ensures your study time goes directly to the areas that need the most work, rather than the areas that feel most comfortable.

Sidetracked Day helps you use practice exams more effectively by:

Generating active recall questions from your study material so you can pre-test yourself on any topic before attempting a practice paper
Automatically scheduling spaced repetition review for concepts you got wrong so gaps get addressed at the right intervals
Tracking which areas you consistently struggle with and prioritising them in your next study session
Identifying the difference between content gaps and recall gaps so you know whether to re-read or just practise retrieving
Adapting the difficulty and frequency of review in real time as your performance on each concept improves

Sidetracked Day does not just help you study more. It ensures that the insight from each practice exam is translated into targeted, efficient review that actually closes your gaps before exam day.

Build a study system that adapts as you learn

Sidetracked Day helps students move beyond static study plans by adapting sessions, practice, and reviews based on how they actually perform.

Try Sidetracked Day

FAQ: How to use practice exams

Are practice exams effective for studying?

Yes. Practice exams are one of the most effective study techniques available, according to decades of cognitive science research. They force active retrieval of information, expose genuine knowledge gaps, and closely simulate the conditions of the real exam. Students who regularly use practice exams significantly outperform those who rely on rereading and highlighting.

How many practice exams should you do before an exam?

For most university exams, completing two to four full practice exams under timed conditions is sufficient, provided you review every wrong answer in detail afterward. Quality of review matters more than volume. Doing ten practice exams without reviewing mistakes produces far less benefit than doing three and analysing every error carefully.

Should you do practice exams before or after studying?

Both approaches work, but for different purposes. Doing a practice exam before studying activates prior knowledge and makes subsequent learning stick better, even when you get answers wrong. Doing practice exams after studying confirms what you have learned and reveals gaps to address. For most students, the most effective sequence is: study content, take a practice exam, review errors, study the gaps, and repeat.

How do you review a practice exam properly?

Effective practice exam review involves three steps: first, identify every question you got wrong or guessed correctly without confidence; second, find the specific concept behind each error and return to your notes or textbook to study it; third, re-test yourself on those concepts within 24 to 48 hours using active recall. Skipping the review phase largely eliminates the learning benefit of taking the practice exam in the first place.

What is the difference between a practice exam and a past paper?

A past paper is an actual exam from a previous year at your institution, while a practice exam is any exam-style test used for study purposes, including past papers, textbook chapter tests, and self-generated questions. Past papers are particularly valuable because they reflect the exact format, difficulty, and question style your professor favours. Both are effective, but past papers are the priority when available.

How do I stop making the same mistakes on practice exams?

Use an error log. For each repeated mistake, record the topic, mistake type, correction, and next review date. Then retry a similar question without notes within 24 to 48 hours.