JAMB CBT Mistakes That Can Ruin Your Exam Day

By Campusflash Editorial Team | [Date] | Reading time: 7 minutes

Most candidates who underperform in JAMB do not fail because they did not read. They fail because they made avoidable mistakes on exam day. Mistakes that had nothing to do with how much they studied.

Some of these JAMB CBT mistakes happen before the exam even starts. Others happen inside the hall. All of them are preventable once you know what to look out for.

Read this before your exam day. Every single point here is based on what real candidates have experienced and regretted.

Important: Your exam date, time, and centre are printed on your exam slip. If you have not printed yours yet, do it now at efacility.jamb.gov.ng. Do not go to your exam centre without it.

Mistake 1: Arriving Late to the CBT Centre

This is one of the most painful JAMB CBT mistakes a candidate can make because it is entirely avoidable and the consequences are severe.

If you arrive after your session has started, you may be denied entry completely. JAMB does not reschedule for late arrival. There is no appeal that will get you back into that session on the same day. Your exam is simply gone.

And it happens more than you think. Candidates who live far from their centre, candidates who underestimated traffic, candidates who could not find the centre on the morning of the exam. All of them avoidable situations.

Arrive at your CBT centre at least one hour before your session time. If your session is 8:00 AM, be at the gate by 7:00 AM. Biometric verification and document checks take time when hundreds of candidates are being processed at once. Being early is not optional. It is part of your exam strategy.

If you have never been to your exam centre before, find it before exam day. Visit it the day before if you can. Know exactly how long it takes to get there and add extra time for traffic. Late arrival is one of the most common and most heartbreaking ways candidates lose their JAMB.

Mistake 2: Bringing a Phone Into the Exam Hall

Every year, candidates are disqualified from JAMB for having a phone on their person inside the exam hall. Every year, some of those candidates thought they would not get caught.

JAMB invigilators conduct physical searches before candidates enter the hall. If a phone is found on you, your exam can be cancelled on the spot. In some cases, candidates have been banned from writing JAMB for multiple years.

It does not matter if the phone is switched off. It does not matter if it is a basic phone with no internet. It does not matter if it is hidden in your sock. A phone is a phone. Leave it at home or give it to someone you trust outside the centre before you join the queue.

Mistake 3: Not Printing the Exam Slip Before Exam Day

Your printed exam slip is the single most important item you need on exam day. It shows your name, exam date, exam time, and centre. Without it, most CBT centres will not let you in.

The mistake candidates make is leaving the printing until the morning of the exam. Then the printing shop is not open yet. Or there is no light. Or the printer is not working. Or the internet is slow and the portal is not loading.

Print your exam slip the night before your exam. Put it with your ID and your pencils. Make it the last thing you check before you go to sleep. Do not give yourself a reason to be scrambling on exam morning.

Mistake 4: Not Verifying Their Details on the CBT Screen

When you log into the JAMB CBT system, your name, photograph, and subjects will appear on screen before the exam begins. Many candidates skip past this screen quickly because they are anxious to start.

Do not do this. Take 30 seconds to check that your name is correct, your photograph matches you, and your subjects are the ones you registered for. If anything looks wrong, raise your hand immediately and tell an invigilator before the exam starts.

Starting an exam on a screen with wrong details and only realising halfway through is a stressful situation that is completely avoidable. Check first. Then begin.

Mistake 5: Spending Too Long on Hard Questions

This is one of the most common JAMB CBT mistakes and one of the most costly. A candidate hits a question they are not sure about and spends three, four, five minutes trying to work it out. The clock keeps running. Easier questions are sitting untouched further down the paper.

Every question in JAMB is worth the same mark. A question you can answer in 10 seconds earns the same as one that takes you 5 minutes. Getting stuck on hard questions is one of the fastest ways to run out of time before you run out of questions.

Use the two-pass method. In Pass One, go through all 180 questions at pace and answer the ones you know immediately. Flag and skip anything that will take more than 30 seconds. In Pass Two, return to your flagged questions with whatever time remains. This approach makes sure you collect every easy mark before spending time on the difficult ones.

Mistake 6: Leaving Questions Blank

JAMB has no negative marking. A wrong answer scores zero. A blank answer also scores zero. But a guess gives you a chance of scoring full marks on that question.

There is never a good reason to leave a JAMB question completely blank. If you are unsure, eliminate the options that are clearly wrong and choose the best one from what remains. Even a random guess on a four-option question gives you a 25 percent chance of being correct. A blank gives you nothing.

Before you submit your exam, scroll through the navigation panel and make sure every single question has an answer. No blanks. Not one.

Mistake 7: Starting With Their Weakest Subject

Most candidates answer their subjects in the order they appear on screen. If their weakest subject happens to come first, they spend their sharpest thinking on the questions they are least prepared for. By the time they reach their strongest subject, they are already tired and low on time.

The JAMB CBT interface lets you jump between subjects freely. Use that freedom. Start with the subject you know best. Build your confidence and your score early. Then move to your weaker subjects with the foundation already laid.

Mistake 8: Not Reading All Four Answer Options

JAMB is well known for placing a convincing wrong answer in option A or B, with the correct answer sitting in C or D. Candidates who stop reading at the first option that looks right fall into this trap regularly.

For every question, read all four options before you select your answer. It adds just a few seconds per question. It also protects you from one of the most consistent patterns in JAMB question design.

Mistake 9: Panicking When Something Goes Wrong

Things sometimes go wrong during the JAMB CBT exam. A computer freezes. The system logs you out. The mouse stops working. These situations happen and they are frightening when they do.

The mistake is panicking and touching things you should not touch. Do not try to restart the computer yourself. Do not click randomly. Do not stand up without permission.

Raise your hand. Stay calm. Stay in your seat. Invigilators are trained to handle technical problems. JAMB’s CBT system saves your progress periodically, so you are unlikely to lose all your work. The candidates who handle technical problems well are the ones who stay calm and wait for help.

Mistake 10: Reading New Material the Night Before

The night before your exam is not the time for new information. Your brain needs rest and consolidation, not more content to process. Candidates who read through the night arrive at their exam tired, anxious, and slower than they would have been after seven hours of sleep.

The night before your JAMB exam, prepare your items, know your route to the centre, eat well, and sleep early. If you must do anything academic, only review topics you already know well. Your preparation is already done. Trust it.

Campusflash tip: The night before your exam, do one thing that genuinely relaxes you. Watch something you enjoy. Talk to someone who makes you feel calm. Take a short walk. Anxiety slows your thinking. Rest sharpens it. You have already done the work. Now let your mind recover so it can perform.

Frequently Asked Questions

Can JAMB really deny you entry for arriving late?

Yes. If you arrive after your session has started, you may be turned away from the exam hall entirely. JAMB does not offer same-day rescheduling for late arrival. This is why arriving at least one hour before your session time is not a suggestion but a requirement. Missing your session due to late arrival means your exam is lost for that date with no guarantee of a replacement.

What happens if your computer breaks down during the exam?

Raise your hand immediately and stay calm. Do not touch the computer beyond what the invigilator instructs. JAMB’s CBT system is designed to save candidate progress at intervals, so your answers are unlikely to be completely lost. The invigilator will either resolve the issue on your current machine or move you to another workstation. Stay composed and let the process work.

Is it possible to recover from a bad start in the JAMB CBT?

Yes. If you start badly on one subject, the remaining subjects are still full opportunities. Do not let a difficult opening section carry into the rest of your exam. Reset mentally between subjects, refocus, and apply your strategy from the beginning on each new section. Many candidates recover well when they refuse to let one bad section define their entire exam.

What should I do if I realise I made a mistake after moving to the next question?

Go back and change it. The JAMB CBT system allows you to return to any question and change your answer at any point before you submit. Use the navigation panel to go back whenever you need to. You can change answers as many times as you like until the exam officially ends or you confirm your submission.

Final Word

The difference between a good JAMB score and a disappointing one is often not how much a candidate studied. It is how well they managed exam day itself.

Avoid these JAMB CBT mistakes and you walk into that hall with an immediate advantage over candidates who have not thought this through. Arrive early. Leave your phone at home. Print your slip tonight. Verify your details. Use the two-pass method. Answer every question. Stay calm.

You have prepared for this. Now make sure nothing avoidable gets in the way of showing it.

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Go in prepared. Come out with your best score.

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