What happens during an ADHD assessment?
4 min read
In a nutshell
An ADHD assessment involves much more than a single questionnaire. Your clinician builds a complete picture using interviews, history, information from different settings and, where appropriate, standardised questionnaires.
A thorough assessment builds a complete picture
An ADHD assessment is not designed to confirm a diagnosis as quickly as possible.
Its purpose is to understand your child as accurately as possible.
That means looking beyond symptoms alone and considering your child's history, everyday functioning, strengths and other possible explanations for what you are seeing.
The clinical interview
At the centre of the assessment is usually a detailed clinical interview.
Your clinician may explore:
- your child's developmental history
- medical history
- family history
- the concerns that led you to seek assessment
- school experiences
- friendships and social experiences
- everyday functioning
- strengths as well as challenges
For children and adolescents, the clinician may also spend time speaking with your child separately, depending on their age and circumstances.
Information comes from more than one source
A comprehensive assessment usually includes information from more than one person and more than one setting.
This may include:
- parents or carers
- your child, where appropriate
- teachers
- standardised questionnaires
- previous reports or assessments
- school information
Each source provides a different perspective. Together, they help your clinician understand whether a pattern appears across your child's life and how it affects them.
Good to know
A difference between parent and teacher observations is not necessarily a contradiction. The difference itself can be useful information for your clinician.
Why questionnaires are used
You may be asked to complete standardised questionnaires, and your child's teacher may be asked to complete one too.
These questionnaires can be valuable, but they are not designed to diagnose ADHD on their own.
They are one piece of information alongside the clinical interview, history and other evidence.
A medical component may also be involved
Your clinician may consider medical and health information as part of the assessment.
This helps them understand whether anything else could be contributing to the difficulties you have noticed and whether other health issues, such as sleep problems, need to be considered.
How long does an ADHD assessment take?
There is no single fixed timeframe.
The process depends on the clinician, the complexity of your child's situation and how much information is already available.
A detailed clinical interview can take considerable time, and the overall process may involve more than one appointment.
That does not mean anything has gone wrong. A thorough assessment is trying to understand a pattern across time and settings, rather than a single moment.
Why preparation can help
Many families spend weeks collecting documents and trying to remember important examples before an appointment.
Preparing this information beforehand does not change what your clinician looks for or who makes the clinical decisions.
It simply helps your clinician begin with more of the picture already organised.
That is exactly what Threadline is designed to support.