Preparing for an ADHD assessment: an evidence checklist

Old school reports often contain phrases such as "easily distracted", "could do better if she concentrated" or "talks too much". Even a few can help. Look for certificates, exam results, nursery or primary school notes, and any previous assessments or reports from educational psychologists. Ask relatives whether they kept anything. If nothing survives, that is not a barrier, because the interview and an informant can cover the ground.

A parent, sibling, partner or close friend who has known you for a long time can describe your behaviour over time. Many assessors send them a questionnaire or speak with them briefly. Explain beforehand what the process involves and encourage honest answers. If no one is available, say so; the assessor can still proceed.

• Times you lost important items, missed deadlines or forgot appointments.

• Jobs you left or struggled in, and why.

• Tasks you avoid, such as paperwork, bills or emails.

• Occasions where impulsivity caused problems, such as spending, interrupting or risk-taking.

• Restlessness, fidgeting or needing constant movement.

• Strategies you use to cope, and what they cost you.

List your medicines, previous diagnoses, any history of head injury, sleep problems, thyroid disease or epilepsy, family history of ADHD, autism, bipolar disorder or heart conditions, and your alcohol and drug use. Honesty matters because substances and other conditions affect assessment and medicine safety. The information is confidential and used to help you.

Allow time and aim to be rested. If the assessment is by video, find a quiet space and test the technology. Bring your notes. If you take caffeine in large amounts, mention it. Ask the assessor to explain what will happen. If you need a break, say so. Neurodivergent people often find assessments tiring.

Ask about the qualification of the assessor, the length of the appointment, what is included in the fee, what you will receive at the end and what happens if you are diagnosed, including arrangements for medication and follow-up. Check whether the report will be accepted by your GP and employer.

Many people find it useful to prepare a single page. At the top, list your main concerns in order of importance. Beneath, give three to five dated examples from childhood and three to five from the past year. Add a short list of medicines, other diagnoses and family history. Finish with the things that help you cope. Handing this over, or reading from it, means that important points are not forgotten when you are anxious or when your attention drifts during a long interview.