The Walk Counseling - Psychological Testing Services

Psychological Testing and Evaluation Services

The Walk Counseling offers specialized testing and evaluation services for autism and ADHD for children, adolescents, and adults to help you gain clarity, understand yourself more fully and move forward with confidence.

If you've been wondering whether ADHD, autism, or cognitive differences could be impacting your or your child's daily life, testing can provide meaningful answers and direction.

At the Walk Counseling, we offer a range of psychological evaluations from focused diagnostic assessments to more comprehensive testing for deeper insight and accommodation support. We approach testing with curiosity, care, and respect for the whole person, not just symptoms or scores.

Assessments We Offer

ADHD Assessment

We assess attention, executive functioning, and impulse control using standardized rating scales and performance measures. This evaluation helps clarify whether ADHD is present and provides practical recommendations for support at school, work, and daily life.

For individuals ages 6+

Autism Assessment

We provide neurodiversity-affirming autism evaluations using gold-standard assessments including the ADI-R and ADOS-2. These tools help us better understand social communication, developmental history, and patterns of behavior.

For individuals ages 3+

IQ Testing

Cognitive testing is available as part of a comprehensive evaluation or as a standalone service and may include measures such as the WISC-V to assess reasoning, memory, processing speed, and overall intellectual functioning.

For individuals ages 6-16

What You Can Expect

ADHD Evaluations (Ages 6+)

Our ADHD evaluations include an in-person session, pre-completed assessments, a testing session (when applicable), and feedback and treatment recommendations. A detailed report can be expected within 10 business days.

Autism Evaluations (Ages 3+)

Our autism evaluations are completed during a two-three hour in person session using gold-standard tools to explore developmental history, social communication, and behavioral patterns. A detailed report with a diagnosis (if applicable) and recommendations is provided within 10 business days, followed by a phone consultation or feedback session to review results.

IQ Testing (Ages 6-16)

Our cognitive testing, completed by Sajana Dissanayake, MA, involves a one-hour clinical interview, completion of the WISC-V and BRIEF-2, followed by a feedback session to review results and next steps.

Pricing

Testing services include a free 15-minute phone consultation with John Mason or Sajana Dissanayake prior to beginning the assessment process to answer questions.

A $100 non-refundable deposit is required to reserve your evaluation appointment. This is applied toward your total cost.

Student and military pricing and sliding scale discounts are available upon request - just ask!

Meet Our Providers

John Mason, LPC-MHSP, ADHD-CCSP, ASDCS

John Mason is a Licensed Professional Counselor with nearly 20 years of experience in the mental health field. John provides both therapy services and comprehensive Autism and ADHD evaluations for individuals ages 4 and older. He works with clients who may be struggling with attention, organization, social skills, development, or challenges at home, school, or work. His goal is to help clients better understand themselves and move forward with clarity and confidence.

In response to the growing need for diagnostic services in the community, John pursued specialized training in testing and evaluation through Arizona State University, where he studied Autism Spectrum Disorder diagnostics and assessment. He is also an ADHD-Certified Clinical Services Provider, earning his professional certification from Arizona State University in 2022. Through the use of standardized clinical assessment tools and interviews, John provides thoughtful and thorough evaluations. Whether working through therapy or the evaluation process, John believes that every person deserves to feel heard, respected, and supported.

Contact John today at (865) 898.0323 or JohnMason@thewalkcounseling.com to schedule a free 15-minute consultation.

About John

Sajana Dissanayake, MA

My name is Sajana, I'm a doctoral student in Counseling Psychology. I conduct psychological evaluations for ADHD and Autism Spectrum Disorder, working primarily with children and adolescents ages 6 through 16, while also offering focused ADHD evaluations for adults. My work is rooted in the belief that a thorough, well-delivered evaluation can be a validating and empowering experience for a client and their family by providing not just answers, but a clearer path forward.

I offer multiple levels of evaluation batteries, from focused assessments targeting a specific area of concern to comprehensive evaluations that capture the full picture of a client's cognitive, emotional, and behavioral profile. Whether you are a parent seeking clarity on your child's attention or social concerns, an adult wondering whether ADHD has been shaping your experience all along, or a family looking for a thorough evaluation that addresses multiple areas at once, I will work with you to identify the approach that best fits your needs and goals.

Every evaluation includes a clinical interview, standardized testing, a detailed written report, and a dedicated feedback session to walk you through the findings and what they mean in practical terms. Reports are prepared to meet standard requirements for school accommodations, support services, and related referrals, so clients and families have the documentation needed to access the right supports without additional barriers.

I understand that seeking an evaluation can feel overwhelming, and that behind every referral question is a person who deserves to be understood fully and treated with care. Whether you are seeking answers for your child or for yourself, my goal is to make this process as clear, accessible, and meaningful as possible for everyone I work with.

Contact Sajana today at (865) 344.0492 or sajana@thewalkcounseling.com to schedule a free 15-minute consultation.

About Sajana

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