K10 scores come from a ten-question checklist that measures how much psychological distress you've felt over the past four weeks. Each answer scores 1 to 5, so totals run from 10 to 50, and higher K10 scores mean more distress. A score isn't a diagnosis. It's a starting point that helps you and your doctor decide whether you need more support, and what kind.
Key takeaways
- The questionnaire asks how often you've felt ten things over the past four weeks, such as nervous, hopeless or tired out.
- Totals run from 10 to 50; under 16 is low distress and 30 or more is very high.
- A high score isn't a diagnosis, but it's a good reason to talk to a GP.
- Distress usually eases with support, talking therapy and steady daily habits.
- If you're thinking of harming yourself, call 000 or Lifeline on 13 11 14.
The Ten Questions on the Kessler Distress Questionnaire
The Kessler questionnaire asks how often, over the past four weeks, you've had ten feelings linked with anxiety and depression. For each one you choose an answer from none of the time, which scores 1, through a little, some and most of the time, to all of the time, which scores 5. Good K10 score interpretation depends on answering for the whole four weeks, not just how you feel today.
| In the past four weeks, how often did you feel | What it looks at |
|---|---|
| Tired out for no good reason | Energy and fatigue |
| Nervous | Anxiety |
| So nervous that nothing could calm you down | More severe anxiety |
| Hopeless | Outlook on the future |
| Restless or fidgety | Agitation |
| So restless you could not sit still | More severe agitation |
| Depressed | Low mood |
| That everything was an effort | Motivation and energy |
| So sad that nothing could cheer you up | More severe low mood |
| Worthless | Self-worth |
Because every answer scores at least 1, K10 scores can't fall below 10, even when you feel fine.
Everyday Signs of Psychological Distress
Psychological distress is emotional suffering, usually with symptoms of anxiety or low mood, that makes daily life harder to manage. Common signs are feeling worried or on edge, low or flat, tired for no clear reason, irritable or restless, and losing interest in things you usually enjoy.
Your body can show it too, through poor sleep, headaches, tense muscles, a racing heart, an upset stomach or changes in appetite. You might notice yourself pulling away from people, drinking more, or struggling to concentrate at work or study.
Distress is common and often short-lived, after a loss or during a hard patch. It matters most when it lasts for weeks or starts to affect how you function, and that's the kind of distress K10 scores are designed to pick up.
Life Events That Raise Distress Levels
Distress rises with events that pile pressure on, such as a relationship ending, grief, money worries, losing a job, caring for someone who is unwell, conflict or bullying at work, and loneliness. Health problems add to it: long-term pain, a new diagnosis, poor sleep, heavy drinking or drug use, and the months after having a baby. Past trauma and a family history of depression or anxiety make high distress more likely. K10 scores often climb when several of these come together, and they can fall again as things settle, which is why filling in the questionnaire again after a few weeks is useful.
K10 Scores From Low to Very High Distress
Totals fall into bands, and two sets of bands are used in Australia. National health surveys sort scores by level of distress, while many GPs use bands that suggest how likely a mental health condition is. The two sets line up as shown below.
| Total | Survey bands | Clinical bands |
|---|---|---|
| 10 to 15 | Low distress | Likely to be well |
| 16 to 19 | Moderate distress | Likely to be well |
| 20 to 21 | Moderate distress | Likely mild condition |
| 22 to 24 | High distress | Likely mild condition |
| 25 to 29 | High distress | Likely moderate condition |
| 30 to 50 | Very high distress | Likely severe condition |
So a total of 20 is moderate distress on the survey bands and at the start of the mild range on the clinical ones, 27 is high distress or a likely moderate condition, and 30 is very high distress or a likely severe one. Only a doctor's assessment can say whether a condition is actually there.
Support and Care for High Distress
Support for high distress starts with a GP, who talks through your answers, asks about your safety and works out what's behind the score. A K10 assessment is only one part of that conversation: the doctor also asks about sleep, alcohol, your physical health and what's happening in your life. Depending on what they find, care might include talking therapy with a psychologist, help through a Mental Health Treatment Plan, medicine where it suits you, or a referral to a psychiatrist. Repeating the K10 test after a few weeks of treatment shows whether things are improving. The doctor decides with you which of these fits, and none is automatic. If your score is very high or you're having thoughts of suicide, don't wait for an appointment: call 000, or Lifeline on 13 11 14, at any hour.
Daily Habits That Ease Psychological Strain
Daily habits ease psychological strain by steadying your sleep, energy and mood. Keep regular sleep and wake times, move your body most days, eat regular meals, and keep alcohol low and drugs out of the picture. Spend time outdoors and with people you trust, break big jobs into small steps, and try slow breathing or another way to switch off before bed. If your K10 test shows mild distress, these habits and the support of people around you may be enough. For higher scores they work alongside treatment, not instead of it. Doing a K10 assessment again after a month of changes is a simple way to see whether they're helping.
When a Result Means Seeing Your GP
A result means seeing your GP when your total is 22 or more, when distress has lasted more than two weeks, or when it's affecting your work, study, relationships or sleep. See a GP whatever the number if you're using alcohol or drugs to cope, having panic attacks or feeling hopeless. Take your answers to the K10 questionnaire with you, or ask the doctor to go through the questions together. K10 scoring takes a minute, and the doctor reads the total alongside everything else you tell them. This guide is for adults, so a child or teenager who seems distressed should see a GP in person. If you or someone else is in immediate danger, call 000.
The Five Question K5 Short Form
The K5 is a five-question version used mainly in Aboriginal and Torres Strait Islander health surveys and services. It asks how often, over the past four weeks, you've felt nervous, without hope, restless or jumpy, that everything was an effort, and so sad that nothing could cheer you up. Answers score 1 to 5 each, giving a total from 5 to 25, and 12 or more is read as high or very high distress. The answers are scored the same way as in K10 scoring, but the totals and bands differ, so a K5 result can't be compared directly with a total from the K10 questionnaire.
Completing the K10 on a Phone or Computer
You can complete the questionnaire on a phone or computer through many health services and mental health websites, and it takes about two minutes. Answer for the whole past four weeks, then note your total and the date so you can compare it later. An online result gives you a number, but K10 score interpretation needs the context only a conversation brings, such as how long you've felt this way and what's going on in your life. Take the result to a GP rather than relying on it alone. If you'd rather not fill it in yourself, a doctor can read the questions to you during a phone consultation and add up your answers.
Summary
K10 scores give a quick measure of how much distress you've felt over the past month, from low to very high, and they help you and a doctor decide what support fits. A score is never a diagnosis, and it can change as life and treatment change. If your K10 scores are high, or distress is affecting your days, a Medio GP can have a first conversation with you by phone about anxiety, low mood, stress or sleep, and review any treatment you already have.
Frequently asked questions
How do you interpret a K6 score?
The K6 uses six of the same questions. Depending on how it's added up, totals run from 6 to 30 or from 0 to 24, and on the 0 to 24 version a total of 13 or more is usually read as serious distress. What scale is used to measure psychological distress? In Australia, the Kessler scale in its ten, six and five question forms is the most widely used.
What is a K10 form?
It's the one-page questionnaire with the ten questions, a box for each answer from none of the time to all of the time, and a space for the total. GPs, psychologists and many health services use it, on paper or online. It's sometimes called the anxiety and depression test, because it measures distress linked to both without diagnosing either.
Can a doctor help with K10 scores?
Yes. A GP can go through your answers, look for what's behind a high total, check your safety and talk about support, from self-help and therapy to medicine where it suits you. A Medio GP can have a first conversation with you by phone about anxiety, low mood, stress or sleep. A child or teenager should see a GP in person.
What is K10?
It's a ten-question checklist of how often you've felt nervous, hopeless, restless, depressed, worthless or tired out over the past four weeks, used across Australia to measure psychological distress. What are some signs and symptoms of distress? Worry, low mood, poor sleep, irritability, tiredness and trouble concentrating are the common ones.
What is a normal K10 score?
A total from 10 to 15 counts as low distress, the range many adults fall in. Scores move with what's happening in life, so a higher total during a hard time isn't unusual. How common are high K10 scores in Australia? National health surveys find high or very high distress in a sizeable minority of adults, more often in women and in younger adults.
How do you interpret a K10 score?
Add the ten answers and compare the total with the bands: on the survey bands, 10 to 15 is low, 16 to 21 moderate, 22 to 29 high and 30 or more very high. What do the score ranges mean for a total of 20, 27 or 30? Moderate, high and very high distress. What is the CORE-10 score range for severe psychological distress? The CORE-10 is a different ten-question measure scored 0 to 40, and 25 or more is its severe range.
Keep reading
Ready to get started?
Book a telehealth consultation with an AHPRA-registered doctor.
Book consultation