How to prepare for an ADHD or autism assessment as an adult

A useful way to prepare

Prepare examples, not a case to prove. Note what happened, when it began, where it shows up, how it affects daily life, and what helps. Childhood records or input from someone who knew you then may help, but availability and requirements vary. Ask your assessor what they need. An online result can organise your thoughts, but it cannot diagnose, confirm, or rule out ADHD or autism.

Start with the service's own instructions

Read every letter, portal message, or form from the assessment service first. Check the appointment format, length, location, access needs, cancellation rules, and any forms due in advance. Ask whether they want school reports, medical records, questionnaires, or information from someone who knew you in childhood. Do not delay or cancel because you cannot find a particular record unless the service tells you it is required.

Gather childhood and developmental examples

Adult assessments often explore whether patterns were present earlier in life. Think about school, friendships, play, routines, attention, activity level, sensory experiences, communication, and how you handled change. Use concrete memories where possible. School reports, old comments, or family memories may add context, but imperfect memory is common. Say what you know and what you do not know rather than filling gaps.

Compare current life across settings

Write one or two examples from home, work or study, relationships, appointments, travel, and busy or unfamiliar places. A useful example names the situation, what was difficult, what other people could see, what effort stayed hidden, and what happened afterwards. Include quieter settings too. Differences between settings can be informative and do not make an experience less real.

Describe impact without minimising or exaggerating

Impact can include missed deadlines, disrupted routines, exhaustion after social contact, conflict, difficulty maintaining basic tasks, sensory avoidance, financial mistakes, or needing much more preparation than other people realise. Note frequency and consequences. Also record strengths and situations that go well. Assessment looks at the wider picture, not only a list of difficulties.

Record the support and effort behind the outcome

A finished task does not show how it was completed. Note reminders, scripts, rehearsing, copying, strict routines, deadline pressure, help from another person, recovery time, or avoiding certain settings. Describe coping or masking in your own words. These patterns are context for a professional to explore, not evidence that a particular condition applies.

Choose records and an informant carefully

Possible records include school reports, earlier assessments, relevant health summaries, work or study adjustment records, and a current medication list. Bring only what the service asks for or what clearly adds context. If an assessor requests input from another person, choose someone who can describe specific periods or settings. Their view is one source of information, not the final word about your experience.

Questions worth asking the assessor

Ask what the appointment will cover, who makes the decision, how they handle overlapping or alternative explanations, whether you will receive a written report, when to expect it, and what happens next. You can also ask for communication or sensory adjustments. If medication, workplace rights, benefits, or legal recognition matter to you, ask the relevant clinician, employer, insurer, regulator, or public service separately. One assessment service cannot promise how another organisation will respond.

On the day

Bring the service instructions, your short notes, requested records, glasses or hearing aids you use, medication information, water, and any ordinary comfort or communication aid the service permits. Keep notes short enough to use during a conversation. You do not need to perform, rehearse a diagnostic script, or answer from online checklists. Ask for a pause or clarification if you need one.

After the appointment, whatever the outcome

Preparation guides tend to stop at the appointment door, but the days afterwards are worth planning for too.

Write down what was said while it is fresh, including anything you were asked to do next and any timeframe you were given. People routinely leave with a clear memory of the tone and a vague one of the detail, and a short note now saves reconstructing it in six months.

If the outcome is a diagnosis, ask what is written in the report, whether a copy goes to your GP, and what if anything follows: medication review, a referral, workplace documentation, a follow up. If it is not a diagnosis, ask what the alternative explanation is, whether anything else is being considered, and what would justify revisiting it later. Neither answer is the end of the conversation.

Expect an emotional reaction either way, including relief that arrives with something more complicated behind it. A confirmed diagnosis often prompts a period of reinterpreting earlier years. Not being diagnosed can be a relief, a disappointment, or both, and it does not invalidate the difficulties that made you seek an assessment in the first place.

Use reflection tools as notes, not evidence

NeuroType's free tools can help you notice examples across attention and executive function, autistic trait patterns, masking, and sensory preferences. Individual answers stay in your browser during the free flow. A result has no diagnostic weight. If you choose a paid report after completing an eligible tool, it can organise the safe summary and conversation prompts already shown on the result page; it still does not diagnose or replace assessment.

Sources and limits

This guide draws on current official and national assessment guidance from NICE, NIMH, Autism CRC, the New Zealand Ministry of Health, and Ireland's HSE. Requirements differ between services and can change. Check your assessor's current instructions. NeuroType does not provide medical advice, referral advice, or an assessment outcome. Formal assessment requires a qualified professional.