By Dr Jaspreet Saini. Published . Updated .
Last reviewed 2026-10-16
Booking an assessment can feel like stepping into the unknown. People want to know what will be asked, how long it takes, and whether they will be believed.
The short answer
A thorough assessment is a structured clinical conversation, usually over more than one appointment. It covers childhood and adult history, what you find hard and what comes easily, other possible causes and the impact on daily life, and ends with a written outcome.
What we know
Australian guidelines recommend a full clinical history rather than relying on questionnaires alone. Rating scales are useful, but they support the clinician's judgement rather than replacing it.
Information from someone who knew you as a child, such as a parent or sibling, often helps. So do school reports, if they exist. The clinician will also ask about mental and physical health, sleep, substances and family history.
What we don't know
Assessment length and format vary between clinicians and services. There is no single national template that every assessment follows.
What else matters
The outcome should explain what you are experiencing whether or not the conclusion is ADHD. A good assessment also considers coexisting conditions and makes a plan for what happens next.
What you can do next
Before booking, ask how many appointments are involved, who will see you, what information to bring and what happens after the diagnosis. Those answers say a lot about the care that follows.
Sources
This article is general information, not personal medical advice. Speak with your own doctor about your situation.