Test anxiety: what actually lowers it before an exam, and what makes it worse

Test anxiety is lowered most reliably by four things: ten minutes of writing down your worries right before the exam (students who did this scored higher in a classroom study), practising under timed, closed-book conditions so the exam feels familiar, a full night's sleep, and treating the racing heart as readiness rather than danger. Rereading notes in the hallway and a lot of caffeine make it worse. If the anxiety is constant or stops you sleeping, talk to someone; the last section says who.

What test anxiety is, and what it does to a test

Most students feel some nerves before an exam. That is not the problem. The problem is when the nerves start taking marks, and the research is clear about how they do it. Worry occupies working memory: the mental workspace where you hold the question, the numbers and the next step at the same time. The exam needs that space. If a running commentary ("I am going to fail this, everyone else is finished") is using part of it, there is less left for the maths.

Beilock and Carr (2005) showed the sharp version of this. They gave students arithmetic problems under low and high pressure. The students with the most working memory did best in the calm condition and lost the most under pressure, because they were the ones relying on that workspace. The students with less working memory used simpler strategies and were barely affected. Knowing the material and freezing anyway is not a contradiction; it is the predicted result.

Across hundreds of studies, test anxiety is associated with lower performance. Hembree's (1988) meta-analysis found it, and a review thirty years later (von der Embse et al. 2018) found the same relationship in the modern literature. The size of the gap varies and the direction does not.

The takeaway: the question is not whether you feel nervous, it is whether the nerves are taking up the workspace the test needs, and the four moves below each give some of it back.

Move 1: Write the worry down, ten minutes before

If you want to know how to calm down before a test, this is the move with the best classroom evidence. Ramirez and Beilock (2011) gave students ten minutes right before a high-pressure test to write freely about their thoughts and feelings about it. In the laboratory, the students who wrote performed better under pressure than students who sat quietly. In a classroom study of a real final exam, the gain was largest for the students who were most anxious about tests: on average, the most anxious students who wrote scored close to a grade higher than the most anxious students who did not. It is one classroom study, and attempts to repeat it have had mixed results, so treat it as a strong lead rather than a law. It costs ten minutes and a sheet of paper.

How to do it:

1. Sit somewhere you will not be interrupted, ten to fifteen minutes before the exam starts.
2. Take a blank sheet. Write what you are afraid will happen and why. Be specific: "I will see the first question and forget everything, and then I will fail and have to tell my parents."
3. Keep writing for the full ten minutes. Do not try to argue with the worries or fix them.
4. Do not reread it. Fold it, put it away, and walk in.

Why it works, as the authors explain it: the worry is offloaded from working memory onto the page, so it is no longer competing with the questions. Chapter 8 of the free playbook carries this as a one-page routine for the morning.

Write the fear down before the exam, in full sentences, and leave it on the page.

Move 2: Practise under test conditions

Anxiety feeds on the unfamiliar. An exam that looks nothing like anything you have done in the last week is frightening on sight. An exam that is the fifth time you have sat with a timer, a closed book and that format is a Tuesday.

There is a second reason this works, and it is about memory rather than mood. Smith, Floerke and Thomas (2016) had people learn material either by restudying it or by retrieval practice, testing themselves on it. The next day, half of each group went through a standard stress procedure before the memory test. Material learned by restudying was hurt by the stress. Material learned by retrieval practice was not. If you learn by answering questions, what you know is more likely to still be there when your heart is racing.

So the week before the exam, the practice has three rules:

• Timed, with the real exam's time per question or a little less.
• Closed-book, with the answers out of reach until the set is finished.
• The same format: multiple choice if the exam is multiple choice, full solutions if it asks for them.

The practice run two days out, described in the day-2 practice run, is the most important session of the week. The exam should be the fifth time you have done it under those conditions, not the first.

Move 3: Sleep, not the all-nighter

Students who are anxious about an exam are often tempted to buy safety with the night before it. The evidence runs the other way. Sleep is when the day's learning is consolidated (Rasch & Born 2013), and a night without it lowers attention and raises anxiety the next morning, which is the opposite of what Move 1 and Move 2 are trying to do. The measured recall loss and the plan that keeps the night are in what one night without sleep does.

The night before, the plan is short: one light review of your error log (twenty minutes, not two hours), the worry sheet if the worry is already loud, everything you need for the morning laid out, and an early night. If you have cut it fine and are tempted to cram, the night before, honestly says what one evening can still buy.

Move 4: Reframe the racing heart

The fast heartbeat, the sweaty hands and the tight stomach are the body getting ready to perform. Whether that feels like danger or readiness depends partly on what you tell yourself it is, and two studies have tested changing the story.

Jamieson and colleagues (2010) worked with students preparing for a graduate admissions exam. Half were told that the arousal they felt during a test could help their performance. Those students scored higher on the maths section of a practice test in the lab and, when they reported their real results one to three months later, higher on the maths section of the real exam too. The effect was on the maths section; the verbal section did not move.

Brooks (2014) asked people to say one sentence before an anxious task (singing in front of others, a speech, a timed maths test). Those who said "I am excited" performed better than those who said "I am calm", and better than those who said nothing. Trying to calm down did not help; relabelling the arousal did.

The script for the hallway, in your own words:

This is my body getting ready. It is the same feeling as excitement. I have done this set five times.

You do not need the nerves to go away. You need them to mean "ready".

What makes it worse

Several things anxious students do on the morning feel like preparation and are not.

What it feels like	What it does
Rereading notes in the hallway	Familiarity without recall. Each page you half-recognise adds an "I don't remember this" and no marks.
Comparing notes with classmates	Every topic they mention that you did not review becomes a new worry.
A lot of coffee on an empty stomach	A fast heartbeat and shaky hands, which your mind reads as panic. Eat something.
Arriving late	The exam starts in a hurry and the first question is read in a hurry. Arrive early and sit down.
One last look at the hardest topic	You walk in with your weakest idea on top of your mind. If you look at anything, make it your error log, once.
The all-nighter	Less attention, more anxiety, less recall. See Move 3.

Worked example: a Grade 12 physics test, the week and the morning

A student in SPH4U has a test on the energy unit, our ideas 6 to 8: work and kinetic energy, conservation of mechanical energy, and power and efficiency. She freezes in tests, so the week is built around Moves 1 to 4.

Days 5 to 2. One timed, closed-book problem set each day, the format of the test, marked afterwards against the worked solutions. Here is one problem from the day-3 set, so "practice under conditions" is concrete:

A 2.0 kg cart is released from rest at a height of 1.5 m at the top of a frictionless ramp. What is its speed at the bottom?

Closed-book, she writes: energy is conserved, so mgh = ½mv². The mass cancels, so v = √(2gh) = √(2 × 9.8 × 1.5) = √29.4 ≈ 5.4 m/s.

The frozen moment on day 3 was the mass. For two minutes she could not see what to do with the 2.0 kg, and the panic started: "I can't do the easy one." Then she wrote the energy equation out in symbols and saw it cancel. That is the point of the practice run. The discovery that mass cancels happened on Tuesday at her desk, not on Friday in the gym. On day 2 she sat the full practice set, timed, and marked it: 14 of 17. The three misses went in the error log.

Day 1. Twenty minutes with the error log, re-solving the three misses from a blank page. Bag packed, calculator checked, early night.

The morning. Breakfast. At school fifteen minutes early. In the hallway: ten minutes writing the worry sheet ("I will see a power question and not know where to start, and everyone will finish before me"). Fold it, put it away. The line: "This is my body getting ready. I have done this five times." No notes opened. Into the gym.

When to talk to someone

Nerves before a test are normal, and the four moves above are enough for most students. Some anxiety is more than that, and it is worth saying plainly what the signs are:

• It is there most days, not only before a test.
• It stops you sleeping or eating normally.
• It brings panic attacks.
• You avoid tests, skip them, or feel ill on the morning of every one.

If any of those is true for you, talk to a doctor, your school's counsellor or your campus health service. They will have seen this many times. Exam accommodations exist for students who need them: in Ontario, through an Individual Education Plan arranged with the school; in the United States, through a 504 plan at school or the disability services office at a college. Extra time or a quiet room is not cheating. It is the system working as designed. This page is not a diagnosis and does not replace care from someone who can see you.

Summary: four moves and three things to skip

The four moves:

1. Write the worry down, ten minutes before, in full sentences. Fold it away.
2. Practise under test conditions all week: timed, closed-book, the same format. The practice run on day 2.
3. Sleep. A light review of the error log, then an early night.
4. Reframe the racing heart: "This is my body getting ready. It is the same feeling as excitement."

The three to skip:

• Rereading notes in the hallway.
• Comparing notes with classmates at the door.
• The all-nighter.