Is there a test for ADHD?

There is no single test. Diagnosis is based on a thorough clinical assessment by a trained and credentialled clinician, using a detailed interview, history and sometimes rating scales. The Australian ADHD Guideline found brain scans, EEG and neuropsychological testing did not increase the accuracy of diagnosis.

Why would I need a blood test for ADHD?

A blood result on its own does not diagnose ADHD. The Australian ADHD Guideline says a thorough assessment by an appropriately trained and credentialled clinician is needed. If your GP suggests any blood tests, ask what each test is for and how it fits into the assessment.

What is the ADHD test called?

There is no single named test. You may be asked to complete a rating scale or questionnaire, and a clinician follows a diagnostic interview based on DSM-5. The AADPA ADHD Diagnosis Checklist sets out what evidence a clinician looks for before a diagnosis.

How Do They Test for ADHD? What to Know in Australia

Q: How do doctors test for ADHD?

Doctors ask about symptoms, development, health, family history and daily life, then compare what they hear with DSM-5 criteria. They look for symptoms before age 12 and impairment in at least two settings. Rating scales can assist, but should not be used alone.

How do they test for ADHD: at a glance

What it is	A clinical assessment of symptoms, history and daily impact, not a pass or fail test
Who can assess it	For children, usually a paediatrician or a child psychiatrist or psychologist; for adults, a trained and credentialled clinician
How long it takes	A detailed clinical interview may take between 2 and 3 hours
What it needs	Symptoms before age 12, lasting at least 6 months, causing impairment in at least two settings
Online options	Quizzes can prompt a conversation but cannot diagnose
Official sources	Australian ADHD Guideline (AADPA), healthdirect and ReachOut Australia

How do they test for ADHD in Australia?

The process is similar for children and adults, though the people involved differ.

Start with your GP. Explain the concerns, how long they have lasted and how they affect daily life, and ask whether other causes need checking first.
Collect evidence of childhood symptoms. Adults may be asked for school reports, and healthdirect says diagnosing adults requires evidence that symptoms began in childhood.
Complete rating scales or questionnaires. Parents, teachers, partners or the person themselves may fill these in, and they support the clinician’s decision.
Attend a detailed clinical interview. The clinician asks about attention, activity, impulses, development, health and family history.
Discuss the results and a plan. Ask for a written summary so you can share it with your GP, school or workplace.

The Australian ADHD Guideline notes a detailed interview may take between 2 and 3 hours (AADPA). Bring a list of questions and anyone who knows you or your child well.

How do doctors test for ADHD?

Doctors rely on structured conversation and history, checked against diagnostic criteria. Under DSM-5 there are 9 inattentive and 9 hyperactive-impulsive symptoms; for children 6 of the 9 symptoms must be present, while for people aged over 17 years only 5 are required (AADPA).

Part of the assessment	What it involves	What the guideline says
Clinical interview	Detailed questions about symptoms, development, school or work, and daily life	A detailed clinical interview may take between 2 and 3 hours
Symptom checklist	Matching what you describe against DSM-5 criteria	Needs symptoms before age 12 and for at least 6 months (AADPA)
Rating scales	Questionnaires completed by you, a parent, a teacher or a partner	Can assist with diagnosis but should not be used alone
Impact across settings	Evidence that symptoms cause impairment at home, school, work or in the community	Impairment in at least two settings is required

Who can give an ADHD test in Australia?

Only qualified health professionals can assess ADHD, and the right person depends on age. Check that the clinician is trained and credentialled in ADHD assessment before you book.

Children are usually diagnosed by a paediatrician or a child psychiatrist or psychologist, and your GP can refer you.
Adults can ask their GP about a referral to an appropriately trained and credentialled clinician.
A teacher, school counsellor or workplace cannot diagnose ADHD, but their observations can be useful evidence.
A website, app or online quiz is not a diagnosis.

Looking for NDIS support at home?

TQN Care support workers help with personal care, community access, respite and help around the home across Sydney, Melbourne and surrounding areas (NSW & VIC). Tell us what you need and we will call you back.

Make a referral →

ADHD blood test, colour test and other tests

People often search for a quick physical or visual test. Here is how common ideas compare with what the Australian ADHD Guideline describes.

Test people ask about	What to know
ADHD blood test	Diagnosis needs a thorough assessment by a trained clinician, not a single blood result. If your GP orders any blood tests, ask what each one is for.
ADHD colour test	Colour quizzes are not assessment tools. A diagnosis rests on a clinical assessment.
Brain scans and EEG	The guideline found neuroimaging and EEG did not increase the accuracy of diagnosis.
Neuropsychological testing	The guideline found it did not increase the accuracy of diagnosis either.
ADHD or high IQ test	An IQ test is not an ADHD test. Ask the assessing clinician if you have questions about giftedness and ADHD.
Test library ADHD tools	Rating scales can assist a clinician with diagnosis but should not be used alone.

Online ADHD test Australia: short quizzes and test questions

ReachOut Australia states that ADHD can’t be diagnosed online or through an ADHD quiz, and that symptoms must be present before age 12 for a diagnosis, as at 28 July 2026 (ReachOut Australia).

A short ADHD test can still start a useful conversation. Use the lists below as a guide for your GP visit, and remember only a qualified professional can assess this.

Typical ADHD test questions ask how often you lose track of tasks, fidget, interrupt, forget appointments or find it hard to wait.
Write down examples from childhood, because clinicians want evidence that symptoms began early in life.
Ask someone who knows you well to describe what they notice, and bring their notes along.
Take your results, notes and questions to your GP rather than relying on a score.

Looking for an online ADHD test in Australia that does not cost anything? See our guide to the free ADHD test and what such quizzes can tell you. For remote appointments, read about online ADHD assessments through telehealth.

ADHD types test: what assessment looks for

There is no separate ADHD types test. The clinician decides the presentation based on which symptom groups reach the threshold (AADPA).

Presentation	What it means
Inattentive	The symptom threshold for inattention is met
Hyperactive-impulsive	The symptom threshold for hyperactivity-impulsivity is met
Combined	Thresholds for both are met

The Royal Children’s Hospital Melbourne describes the same three main types, and says hyperactive-impulsive is rare and combined is the most common (reviewed April 2026) (Royal Children’s Hospital).

How do they test for ADHD in kids, women and adults?

The method is the same, but what clinicians ask about differs by age and life stage. These guides go deeper for each group.

For your child, read our guide to the ADHD test for kids and what a paediatric assessment involves.
For yourself as an adult, see the ADHD test for adults and how to prepare for the interview.
For women, see the ADHD test for women.
If you are unsure whether it is ADHD or autism, read about the autism test in Australia and the free autism test.

When to talk to a GP or specialist about ADHD

Attention, restlessness or impulsive behaviour has lasted at least 6 months and affects daily life.
Concerns show up in more than one place, such as home, school or work.
A teacher, employer or family member has raised the same pattern more than once.
You feel anxious, low or overwhelmed, or your sleep is regularly disrupted.
You want advice about ADHD for yourself or your child and are not sure where to start.

Call 000 in an emergency. healthdirect’s helpline on 1800 022 222 connects you with a registered nurse 24 hours a day, 7 days a week.

Looking for NDIS support at home?

Make a referral →

Your next step

If you or your child is ready to start, book a GP appointment and bring your notes. If you have an NDIS plan and need practical help, TQN Care’s NDIS services provide support workers for personal care, community access, respite and help around the home across Sydney, Melbourne and surrounding areas (NSW & VIC). We do not assess or treat ADHD, but we can help with daily routines so appointments and everyday life run more smoothly.

Sarah M., Support CoordinatorTQN Care is a registered NDIS provider supporting people across Sydney, Melbourne and surrounding areas (NSW & VIC).

How Do They Test for ADHD?

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