ADHD Assessments
Accurate diagnosis, Practical solutions, Greater success.
NO WAIT LIST | Insurance accepted

What ADHD Assessments Can Evaluate
Whether you’re seeking answers for yourself, your child, or a teen, our ADHD assessments at McDowall provide a thorough, evidence-based assessment, without the long wait-lists. We offer ADHD assessments in-person at our Toronto, Brampton, and Mississauga clinics or virtually from the privacy of your own home.
Why ADHD Assessment Outcomes Matter
An ADHD assessment not only confirms whether ADHD is present, but also provides valuable insights into personal strengths, challenges, and any related conditions.
The outcomes guide tailored treatment plans, helping individuals access the right support, strategies, and resources to improve daily functioning and long-term well-being.

Who We Help
Children & Teens
Common concerns include:
- Trouble focusing or following instructions
- Careless mistakes or forgetfulness
- Restlessness, impulsivity, or emotional outbursts
- Losing items, missing deadlines, or incomplete schoolwork
- Academic challenges in reading, writing, or math


Adults
Many adults go undiagnosed until later in life. Our adult ADHD assessments focus on how attention, organization, and emotional regulation affect daily life, work performance, and relationships.
Common concerns include:
- Chronic procrastination and disorganization
- Trouble starting or finishing tasks
- Forgetting appointments or misplacing items
- Feeling overwhelmed by deadlines or details
- Long history of “coping” but never feeling on top of things
Our ADHD Assessment Process

Request an appointment
Receive a 15 minutes consultation to discuss your concerns.

Clinical Interview
We learn about your concerns and explain the process.

Testing Session
We learn about your concerns and explain the process.

Feedback Appointment
We discuss findings and strategies tailored to you.

Final Report
Provided within a set timeframe, ready for school or workplace submission.

Virtual ADHD Assessments Across Ontario
Why Choose McDowall for ADHD Assessments
Fast Access
Book quickly without months-long waits.
Province-wide reach
Virtual assessments available across Ontario.
Holistic, integrative approach
We look beyond symptoms, considering mood, sleep, learning, and lifestyle.
Actionable results
Our reports are clear, practical, accepted for school or workplace accommodations.
What does our ADHD Assessments include
- Clinical Interview
Gathering background on development, health, education, work, and current concerns.
- Cognitive & Attention Testing
- Recommendations & Resources
- Written Report
- Questionnaires & Rating Scales
- Differential Diagnosis
- Feedback Session
A clear explanation of results and recommendations.
- Follow-Up Support

Fees & Insurance
How much does an ADHD assessment cost?
Comprehensive ADHD Assessments
- Includes in-depth testing, a detailed written report, and personalized recommendations.
- Suitable for children, teens, and adults with more complex needs.
Focused Adult ADHD Assessment
- A shorter, targeted option for certain adults with straightforward needs (for example, confirming ADHD without exploring broader learning or mental health concerns).
- Involves fewer tests and shorter appointments, making it faster and more affordable.
- Ask us during your consultation if this approach might be right for you.
Insurance Coverage
How long does the process take?
Most ADHD assessments are completed in two sessions, with results typically ready within 2–3 weeks.
What will I learn from the assessment?
You’ll gain a clear understanding of whether your symptoms meet diagnostic criteria for ADHD, along with personalized recommendations for treatment, accommodations, and coping strategies.
Can adults be assessed for ADHD?
Yes. Many adults seek assessment later in life after recognizing long-standing attention or organization difficulties. Adult ADHD assessments explore how symptoms impact work, relationships, and daily functioning.
Is an ADHD assessment covered by insurance?
Most extended health insurance plans cover psychological assessments, though coverage amounts vary. We recommend checking your benefits before booking.
What happens after the assessment?
You’ll receive a feedback session to review your results, discuss recommendations, and plan next steps, which may include therapy, coaching, or medical consultation.
What to bring to Your ADHD Assessment
To help us get the most accurate and complete understanding of your attention and functioning, please bring:
Any previous assessment reports (psychological, psychoeducational, or medical)
School report cards, transcripts, or workplace evaluations
Completed questionnaires (if sent before your appointment)
A list of current medications and any relevant medical notes
Your glasses or hearing aids, if used regularly
If you’re a parent bringing a child, please also bring:
Teacher feedback forms or school reports describing classroom behaviour
Copies of IEPs or support plans, if applicable
Before your appointment, try to get a good night’s rest, eat a balanced meal, and avoid caffeine or energy drinks, as these can affect concentration during testing.
Do I Take My ADHD Medication on My Assessment Day?
This depends on the purpose of your assessment.
If the goal is to understand your natural attention and functioning, you may be asked not to take your medication that day.
If the goal is to evaluate how well your medication is working, you may be advised to take it as usual.
Your psychologist will provide specific instructions before your appointment to ensure accurate and meaningful results.
Virtual ADHD Assessments Across Ontario
We serve clients in-person in Toronto, Brampton, Mississauga, and throughout Ontario via secure virtual platforms. Whether you live in Ottawa, Kingston, Windsor, Sudbury, Thunder Bay or anywhere in between you can access the same quality of care from the comfort of your home.