BrainLab Psychology Group

Adult assessment · ADHD

Adult ADHD assessment.

Adult ADHD assessment asks whether longstanding attention or executive-functioning patterns—and not one difficult season or one questionnaire—best explain the impact you are experiencing now.

Request an AssessmentAll-age ADHD assessment

Why do adults seek ADHD assessment?

Adults often seek assessment when demands at work, post-secondary school, parenting or daily administration expose a pattern that compensation once concealed. The central question is not whether someone sometimes loses focus. It is whether a persistent developmental pattern affects functioning and is better explained by ADHD, another factor or a combination.

Where is adult ADHD assessment available?

BrainLab provides in-person psychological assessment in Ottawa. Virtual assessment is available across Ontario and in Nunavut where the referral question and required assessment methods can be addressed appropriately in that format.

The proposed format depends on the referral question, age and testing or other methods required.

Learn about assessment availability in NunavutHow assessment worksFees and payment

What does an adult ADHD assessment examine?

No single checklist, attention task or informant determines the conclusion. The clinician brings together the history, current functioning and assessment findings that are relevant to the referral question.

  • current attention, organization, planning, inhibition and follow-through
  • childhood and adolescent history, including when records are available
  • effects at work, school, home, in relationships and in daily tasks
  • sleep, anxiety, depression, stress, trauma, substance use, health and medication context where relevant
  • learning, autism and other developmental questions when the pattern suggests overlap
  • strengths, strategies, compensation and environmental supports

What if childhood records are limited?

School reports, prior assessments or a perspective from someone who knew you earlier can be useful, but the available evidence differs from person to person. Tell BrainLab what exists. The clinician will explain what can be concluded from the available history, what remains uncertain and whether another source would help.

ADHD, anxiety, sleep and learning can overlap

ADHD vs autism vs anxietyADHD vs learning disability

Preparing for the assessment

  • Write down the questions you want the assessment to answer.
  • Note examples from work, education, home and relationships.
  • Gather relevant prior reports only if BrainLab asks for them and explains how to share them securely.
  • List current medications, sleep or health factors that may affect participation.
  • Ask the receiving school, employer or insurer what documentation it currently requires.
Assessment Preparation CentrePost-secondary documentation

What can the results do?

A BrainLab psychological assessment includes feedback and a written report. It may clarify whether the evidence supports ADHD, describe functional strengths and difficulties, identify relevant alternative or co-occurring explanations and connect findings to recommendations. It cannot guarantee a diagnosis, medication, workplace action, academic accommodation, benefit or insurer decision.

How reports may be usedCost and funding in Ontario

Clinical review

Sources and review

Last clinically reviewed 2026-08-26. Reviewed by BrainLab Psychology Group. Sources are provided for general information; the individual assessment plan is determined clinically.

CAMH: ADHD in adults (opens in a new tab)Quality & Clinical Standards

Next step

Begin with the question, not a presumed result.

Tell BrainLab what you want to understand and where the pattern is affecting daily life.

Request an AssessmentUse the Assessment Planner