ADHD and Learning Differences Assessments Across Ontario

At the Possibilities Clinic, we know that diagnosing ADD and ADHD, Learning Disabilities, Tourette Syndrome and associated conditions must be done with care, expertise, and uncompromising attention to detail. An accurate diagnosis is the first step towards an effective treatment plan. That is why every assessment we do involves these essential components to support diagnostic accuracy and treatment success:

  • A team of experts from different disciplines (e.g., psychiatry, pediatrics, psychology, occupational therapy, speech and language pathology)
  • Clinical interview sessions where we gather information about medical history and current functioning
  • Direct testing of attention, memory, learning and associated cognitive skills with a psychometrist
  • A team meeting when experts involved in the assessment review the findings, make diagnostic decisions and devise an individualized Treatment Plan
  • A feedback session where results and treatments are discussed with the patient and/or family
  • Integrated medication consultation sessions with our neuropsychiatry and paediatric experts

We have different kinds of assessments for different needs. Here are some common questions, grouped into themes, and our answers to help you better explore your assessment options.

    Do I have to decide what assessment I need on my own?
    No. We can definitely help you. An initial discussion with one of our Care Coordinators can help determine the assessment that is right for you or your family. Please call 1-833-482-5558 to speak with one of our Care Coordinators or email us at You can also start by filling out an child intake form or one for adults and obtaining a physician referral.
    Yes. Since all our assessments involve a physician—either a psychiatrist or paediatrician—they require an initial referral from a medical doctor.
    Once an assessment happens at the clinic, does the doctor on the team continue to follow me or my child medically for as long as we need?
    That is a good question, and the best way to answer it is to explain our process in a bit of detail. At Possibilities, our Collaborative Care Model allows you to access specialized care from experts through your own doctor. First, your physician will reach out to us with a referral for collaboration with our specialty team. If extenuating circumstances do not allow you to secure a referral, we will see if we can help. Eventually, however, you will need your own family doctor who can monitor and renew any medication that may be prescribed and started by our experts. For example, our psychiatrists may suggest a specific ADHD medication at a specific dosage. Once the response to the medication has been stabilized, your own doctor will continue monitoring the response, and renewing the prescription, with future check-ins with our experts, as necessary. So, to summarize, our medical experts 1) consult around specialized diagnoses and 2) start specific medication if pharmacological treatment is appropriate and something you are interested in. Then, 3) your own doctor takes it from there in terms of continuing your medication treatment.
    Can your assessments be done remotely over video?
    Yes. Almost all of our assessments, including those for ADHD and for Learning Disabilities, can be done over secure video sessions. In fact, before COVID-19, we were offering medical consultations, therapies and most assessments through secure video sessions to individuals and families located outside of the Greater Toronto Area (GTA). Our medical doctors and allied health professionals, including psychologists, social workers and occupational therapists, are licensed to provide services anywhere in Ontario. So, through secure video, we will continue to provide assessments, therapies and medical services to individuals and families from Windsor to Thunder Bay, from London to Ottawa, and from all other regions within the province.

    Can you provide video assessments outside of Ontario?
    No. At the present time our physicians and allied health professionals are licensed to provide care in Ontario. However, some of our Specialized Tutoring Services for ADD/ADHD and Learning Disabilities can be provided across North America through secure video sessions. 
    How much do your assessments cost?
    Costs depend on the specific assessment you are requesting. If costs for any service do not appear on assessment pages, please contact our Care Coordinator for more information. Fees for assessments may be covered by private insurance plans. Post-secondary students seeking assessments may also apply for OSAP bursaries. 
    What ages do you see? I am an adult. Is it too late to get help? 
    No, it is never too late to get help! We see people of ALL ages, especially for Attention Deficit Disorders, and that includes adults. And when we say adults, we do not just mean young adults who are heading off to college or starting a career. We see 30 and 40 year-olds who are cycling through jobs without direction or living with countless DIY projects that have never been finished. We see 50 and 60 year-olds who are questioning whether they have ADD or ADHD for the very first time. And we see adults who are older than that, too. All the adults we work with are striving for better outcomes, believing it is never too late for new beginnings and a fresh outlook! 

    We offer different services for different ages. Speak with our Care Coordinator about what services may be right for you. Short descriptions of our assessments appear below, again while answering questions we hear often. 
    What is involved in an assessment for ADD or ADHD?
    At Possibilities we offer a comprehensive assessment for ADD and ADHD for children, teens, and adults. Attention Deficit Disorders are complicated. Often, other challenges go along with them. So, we explore more than just focus. We do direct testing of attention, memory, and related cognitive skills over secure video sessions. We look at other issues, too, like anxiety, mood, and social and emotional functioning. For children, teens, and young adults in school, we also do a screening of academic abilities. Once the assessment is complete, our psychology team will match your needs to the right coaching or executive functioning interventions. Your official report can also be used to obtain school and workplace accommodations. Since the assessment team includes a physician with expertise in ADD/ADHD, medication can be started—in partnership with your family doctor—to ensure that a critical component of ADD or ADHD treatment is in place if you wish to explore this option. More information about our Comprehensive ADD/ADHD Assessment appears here

    What if I have concerns about several things at once, like attention, learning and my child’s mental health?
    The Possibilities Signature Assessment looks at all of these concerns—attention, learning and mental health—because science shows these challenges often go together. Our medical and psychology experts are involved in the team assessment which includes clinical interviews, report card reviews and direct testing. Given that the assessment is so comprehensive, we are able to make diagnoses like ADD/ADHD, Learning Disabilities and issues such as anxiety based on the findings. Once any diagnoses have been made, you will meet with the doctor on the assessment team to explore medical treatment options. You will discuss additional treatments with an expert from psychology in a separate feedback session. You can read more about our Signature Assessment here.

    I have also been told by the school that my child needs a Psychoeducational Assessment. Do you offer this kind of testing?
    Yes, but our psychoeducational testing is part of the Signature Assessment described above. Parents or schools requesting a Psychoeducational Assessment are typically wondering if a Learning Disability can explain problems in reading, writing or math. Science says that learning difficulties often have other challenges that go along with them, like problems with attention. We do not want to miss any challenges that can limit learning, so we do not offer stand-alone Psychoeducational Assessments. Instead, we do full psychoeducational testing, but we add comprehensive attention testing with a physician, as well as an assessment of mental health in our Signature Assessment. 

    You can think of our Signature Assessment this way:

    Possibilities Signature Assessment = a Psychoeducational Assessment PLUS an ADD/ADHD Assessment PLUS an Assessment of Mental Health and Social Functioning done by a team with Psychology PLUS Medical experts

    So, if you are interested in a Psychoeducational Assessment, ask about our Signature Assessment which has added investigations so other challenges do not get missed! More information about our Signature Assessment appears here.

    My child has always struggled to make friends. Could it be autism?

    Toddlers, children and teens can have difficulty making friends for many reasons. Maybe there are attention problems that make it tough to follow conversations or control big emotions. Maybe there are language delays that make it difficult to express ideas or understand what peers and adults are saying. And maybe those factors can explain some of the difficulties your child is experiencing, but not all of them. Autism Spectrum Disorder (ASD) is complex and diagnosing it cannot be done quickly. Our team, including experts from psychiatry and psychology, takes a comprehensive look at more than just social functioning. We examine language skills, attention, mental health as well motor functioning and sensory processing. Direct testing of your child or teen is also done using the ADOS, considered the gold standard for assessing behaviours seen in autism. More information about our Comprehensive ASD Assessment appears here.

    My child blinks a lot and clears his throat often. Could it be Tourette Syndrome?

    Tourette Syndrome is a condition where involuntary movements called tics are present. Tics may be challenging for a child or teen, but other challenges may be present that can make life difficult, too. For example, Attention Deficit Disorders—either ADD or ADHD—can occur along with Tourette Syndrome, and so can Learning Disabilities and mental health challenges like anxiety or obsessive compulsive behaviours. So, it is important when assessing for Tourette Syndrome that other challenges are explored. Our team approach with experts from various disciplines, like psychiatry and psychology, ensures a 360 view of all your concerns. Clinical interviews, medical review of developmental and health history, ratings on standardized questionnaires, and direct testing of your child or teen provides a thorough investigation to support any diagnoses we make. More information about our Comprehensive Assessment for Tic Disorders/Tourette Syndrome appears here.