Clarity on ADHD, Autism, or What's Actually Going On.
Comprehensive, evidence-based psychological testing for children, teens, and adults — with reports built to be used, not filed away.
Who You'll Work With
Real clinicians, not a call center — here's who's actually behind your evaluation.
Dr. Quincee Gideon
"A diagnosis isn't a label — it's a map. My job is to hand you that map in a way that actually makes sense for your life, not just check a clinical box."
Dr. Megan Johnson
"I bring the same commitment: to see the whole person, not just the question I've been asked to answer."
What We Test For
ADHD Testing
Children (6+), teens, and adults. Reports built for school, college, and workplace accommodations.
Autism Testing
Evidence-based evaluations for children, adolescents, and adults seeking clarity and documentation.
Educational Evaluations
- Dyslexia
- Dyscalculia
- Dysgraphia
- Executive functioning
Exam Accommodations
- SAT / ACT / AP
- GRE / GMAT / LSAT / MCAT
- Bar exams & licensing
- College disability services
Sound Familiar?
Whether it's something you've lived with for years or something you're starting to notice in your child, these are the patterns that bring most people to our door.
Attention & Focus
- Chronic lateness that feels impossible to fix
- A brain that hyperfocuses on some things and can't start others
- Systems and planners that never quite stick
- Homework that doesn't get finished, even when they understand it
- Big emotional reactions that seem to come out of nowhere
- Constant movement, talking, or interrupting teachers keep flagging
Social & Sensory
- Exhaustion after socializing that feels physical, not just tired
- Rehearsing conversations before you have them
- Being told you're "too sensitive" or "too intense"
- Meltdowns or shutdowns, especially right after school
- Deep, narrow interests other kids don't share
- Sensitivity to textures, tags, noise, or certain foods
Reading, Writing & Math
- Words that seem to move or blur on the page
- Numbers that never quite "stick," no matter how many times you're taught them
- Needing far more time than others to read or process
- Reading well below grade level despite effort and tutoring
- Math that takes far longer, or feels impossible, next to classmates
- A gap between how smart they clearly are and how school is going
These are common patterns, not a diagnosis. Testing is what gives you the full, accurate picture.
Not ready for a full evaluation yet?
Take our 5-minute ADHD screener first — a lower-commitment way to get a first read before you decide on comprehensive testing.
Why Choose Grey Matter Psychological Assessment?
- ✓Thorough, evidence-based evaluations
- ✓Clear, detailed written reports
- ✓Documentation aligned with school and testing board standards
- ✓Personalized feedback sessions
- ✓Compassionate, neurodiversity-informed care
“You won’t leave with vague conclusions. You’ll leave with answers.””
What to Expect from the Evaluation Process
Consultation
A brief call with the psychologist who'll work on your case. You leave knowing cost, timeline, and testing type before anything is scheduled.
Comprehensive Testing
Standardized assessment across one or more sessions — intake, testing, and report writing.
Report & Feedback
A written report with diagnostic conclusions, strengths and challenges, and clear next steps. Most evaluations complete in 2–6 weeks.
Autism & ADHD Overlap:
Office Locations:
Who We Serve
Neighborhoods We Serve
Let’s Learn
Want to learn more about how ADHD and autism testing work at Grey Matter? We’ve got you covered.
Blog
Grey Matter Psychological Assessment is different.
At Grey Matter Psychological Assessment, we know that you want to understand your symptoms and finally live up to your potential. In order to live that life, you need clarity on whether you have ADHD, autism, or some other learning difference and what you can do to manage it. The problem is: not all psychological testing is created equally. You might find yourself waiting months for your results or getting bland and unhelpful feedback. This leaves you feeling confused and frustrated about your next steps. You should be able to understand your neurological and psychological processes.
You might get mixed up in the differences between anxiety, depression, ADHD, ADD, and trauma symptoms. It makes school, work and relationships feel out of control. Our collective of psychologists provides approachable, thoughtful, and thorough psychological testing.
What’s holding you back?
We provide comprehensive testing that gets to the bottom of your questions. You deserve to have answers, which actually reduces costs over the course of your life. Read our blog about reduced costs. For any of our services, we offer superbills, which can be submitted to your PPO insurance for reimbursement, and payment plans.
Testing is too expensive.
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Testing and assessment do take a little bit of time and scheduling, and you can expect your results and/or feedback session about one month after testing. Need the results faster? Just let us know during your consultation call how to best accommodate you.
I need answers immediately. Can testing be done quickly?
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If you’ve felt that no one has been able to help you, this assessment will finally answer those nagging questions about your psychological functioning. If it doesn’t, we’ll continue to search for answers with additional tests and assessments.
What if I’m too complicated?
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How long does testing take?
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Testing can be scheduled to adjust to your specific needs. It is possible to break up the testing sessions, get your feedback more quickly than normal, or arrange for other accommodations. Schedule a consultation to troubleshoot concerns.
Ready to get answers?
Your pain is real. If you’re tired of uncertainty and want a clear, data-informed understanding of what’s happening, we’re here to help.
Introducing Neurofeedback Brain Training!
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Train your brain at home.
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Introducing Neurofeedback Brain Training! • Train your brain at home. •
I know I struggle with focus and attention.
Now what?
We wanted to offer more than just testing for those that know that they struggle with attention, motivation and focus. If you struggle in these areas, we now have some comprehensive ways to support yourself— and you can do it from the comfort of your home.
Introducing NeurOptimal® Neurofeedback. This is our professional-grade neurofeedback system that you can rent and use from the comfort of your home.
The name sounds complicated but the science behind non-linear neurofeedback is fascinating and straightforward. Neurofeedback simply mirrors helpful information back to your brain so your brain can do what it does best—self-correct.
Neurofeedback can support you in issues like:
Emotional regulation
Attention and focus
Anxiety and low mood
Physical pain
Athletic performance
Self-esteem