Book an Appointment at Onyx Assessments
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Psychological Assessment & Testing
We offer various Psychological Assessments for ages 6 years and up.
New clients should call to book an Initial Consult with our professional to discuss the best path to take.
Parenting Consultation
Applying expertise in child development, education and counselling to help parents discover solutions that fit their family.
Dion Matheson
Dion is an educator and school counsellor with over 15 years experience helping children, teens and families thrive in school and at home. She’s also a mom to three children, ages 11 and under, so she understands just how hard parenting can be! As a parenting consultant, she believes all parents are doing the best they can. When parents fall short – which we all do, frequently – it takes strength to ask for help, seek advice, and implement some new strategies.
Dion holds a Bachelor’s of Education in Secondary Education and a Master’s Degree in Educational Psychology. She has worked with children from preschool to high school and has a background coaching adult learners. As a parenting consultant, she applies her expertise in child development, education and counselling to help parents discover solutions that fit their family.
Dion is an educator and school counsellor with over 15 years experience helping children, teens a... Read More
Sarah Melville
Registered Psychologist
Psychological Assessment and Testing
I specialize in Psychological Testing and Assessments for children, youth, and adults.
I hold a Master of Education degree in School and Applied Child Psychology from the University of Calgary. Since the completion of my graduate studies, my expertise and interest lie in assessing and addressing the unique needs of children, youth, and adults within educational and clinical settings. I have training, and supervision in conducting psychological assessments in the areas of Attention-Deficit/Hyperactivity Disorder (ADHD), Intellectual Disabilities, Specific Learning Disorders, Anxiety, and Depression.
My goal while working with every client, is to provide useful information, tailored recommendations, and create a space in which you feel comfortable asking questions, learning about the assessment and outcome, and feel confident applying the shared information in your everyday life.
I stem from a highly collaborative and strength-based approach in order to make you feel involved and supported.
It is my belief that in order to make a true impact, there needs to be collaboration with multiple people who impact an individual’s life. Working with, and collaborating with parents, families, teachers, and involved healthcare professionals is a key step towards making positive change. The relationship that is created during an assessment needs to have a foundation of trust, respect, and compassion.
My goal for anyone who walks through my door is that they leave feeling more confident, understood, supported, and equipped with the knowledge they need in order to better learn, grow, advocate, and making positive changes.
I have multiple years of experience supporting individuals, families, and schools through the challenges they face and have a strong appreciation for the challenges you may be experiencing. Additionally, my experience working in various settings with these different populations provides me with a valuable skill in truly being able to empathize different points of view and tie that experience together to ensure everyone feels heard, supported, and understood.
We offer various Psychological Assessments for ages 6 years and up.
New clients should call to book an Initial Consult with our professional to discuss the best path to take.
Approximate Assessment costs for the entire process are listed below:
Psychoeducational Assessment = $2,420 - $3,300
Test Accommodations/Post-Secondary Assessments = $2,420 - $3,300
Giftedness Assessment = $1,430
Child ASD Assessment = $2,640 - $3,960
Adult ASD Assessment = $2,420 - $3,520
Adult ADHD Assessment = $1,320
Mental Health Assessment = $1,320 - $2,200
Registered Psychologist Psychological Assessment and Testing I specialize in Psychological Testi... Read More
Brittany Norlin
Registered Psychologist
Psychological Assessment and Testing
I am Registered Psychologist who earned her Masters of Science in School and Applied Child Psychology from the University of Calgary. My graduate research primarily focused on resiliency, positive youth development, growth mindset, and factors influencing decision-making in interpersonal practice. More recent research interests and initiatives have focused on social skill development and program evaluation for adolescents with ADHD.
Since completing my graduate training, I have worked in specialized clinical, private, and public educational settings where I gained experience providing remedial intervention, consultation, and assessment to individuals, families, and children. Specifically, I have extensive training, supervision, and experience conducting psychological assessments in the areas of Attention-Deficit/Hyperactivity Disorder, Intellectual Disabilities, Specific Learning Disorders, Giftedness, Anxiety, Depression, Adjustment Disorder, Oppositional Defiant Disorder, Conduct Disorder, and Trauma-Related Stress Disorders.
I take a strength-based and collaborative approach to helping an individual and their family understand their unique learning and behavioural profile. I am passionate about helping my clients identify the way they learn best and in turn, provide individually tailored, evidenced-based recommendations. I strive to help students, families, and school personnel teams navigate student’s unique academic challenges.
In addition to my clinical work in the field of psychology, I have also presented at conferences locally, nationally, and internationally.
I live in Sherwood Park and enjoy spontaneous weekends away to the mountains where I can be found either hiking, paddle boarding, skiing, or snowshoeing.
We offer various Psychological Assessments for ages 6 years and up.
New clients should call to book an Initial Consult with our professional to discuss the best path to take.
Approximate Assessment costs for the entire process are listed below:
Psychoeducational Assessment = $2,420 - $3,300
Test Accommodations/Post-Secondary Assessments = $2,420 - $3,300
Giftedness Assessment = $1,430
Child ASD Assessment = $2,640 - $3,960
Adult ASD Assessment = $2,420 - $3,520
Adult ADHD Assessment = $1,320
Mental Health Assessment = $1,320 - $2,200
Registered Psychologist Psychological Assessment and Testing I am Registered Psychologist who ea... Read More
Room Rental
Looking for a professional, comfortable space for your next meeting, client session, or creative workday? We offer three thoughtfully furnished rooms available for rent — perfect for meetings, presentations, collaborative sessions, and private work.
The Blue Room A bright and inviting space designed for comfort and productivity.
Features include: Windows with natural light - Desk - Couch - Two chairs - Lamps - Side tables - Coffee table
The Blue Room is ideal for one-on-one meetings, small team sessions, consultations, or a quiet workspace away from distractions. Its comfortable seating and welcoming layout make it both functional and relaxed.
The Green Room A professional yet cozy space perfect for focused work and small gatherings.
Features include: Windows with natural light - Desk - Couch - Two chairs - Lamps - Side tables - Large white board
The Green Room offers a comfortable setting for meetings, interviews, client appointments, or independent work sessions. Designed to balance professionalism with comfort, it’s a versatile space for a variety of needs.
The Boardroom A fully equipped space designed for collaboration, presentations, and team meetings.
Features include: Five double tables - 14 chairs - TV with Bluetooth screen mirroring for presentations and video calls - Water cooler - Nespresso machine (coffee not included)
The Boardroom is ideal for team meetings, training sessions, workshops, and client presentations. With flexible seating and built-in presentation capabilities, it’s designed to support productive and professional gatherings.
Body Doubling
Finding it hard to concentrate or get things done on your own? It’s not a lack of effort — some brains simply thrive with shared structure and accountability. Our Body Doubling & Focus Sessions take place in our boardroom, offering a calm, supportive, distraction-aware environment where you can work alongside others and build momentum, stay on task, and follow through on whatever’s on your to-do list.
Book Your Space: Whether you need a comfortable meeting room or a fully equipped boardroom, we have the perfect space for you. Contact us today to check availability and reserve your room.
Looking for a professional, comfortable space for your next meeting, client session, or creative ... Read More
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Located at: 2833 Broadmoor Blvd, Suite 268, Sherwood Park
Directions & Map | All Locations
Need Help? 5874150482 info@onyxassessments.ca