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Assessments and Diagnostic Testing

The assessment process is a way to learn about an individual’s 

strengths and challenges. 

By identifying these strengths and challenges, we can recommend 

specific courses of treatment.

Let's get started! Call 713-973-1842 for more information or to schedule a consultation.

About Assessments and Testing

Diagnostic Assessments


The Stewart Center specializes in the diagnosis and treatment of neurodevelopmental disorders, such as autism spectrum disorder, attention deficit/hyperactivity disorder (ADHD), anxiety disorders, mood disorders, behavioral disorders, learning disabilities, language disorders, trauma and stress-related disorders.

Early Identification


It is part of the mission of The Stewart Center to be a center for early identification of neurodevelopmental disorders. From birth to at least 36 months of age, every child should be screened for developmental milestones during routine well-child visits at their pediatrician’s office. When such a screening raises concerns, The Stewart Center can complete further evaluation, make diagnoses when appropriate and help families initiate early intervention.

Educational Assessments


As students grow and change, so do their needs. To be sure that intervention plans address these needs, the public school system, as well as nearly all private schools, require students with special needs to have “current” evaluations updated every three years. Psychological-Educational assessments help in developing appropriate educational objectives, modifications and supports to help the student achieve those objectives. Further, some students may have academic, behavioral or developmental problems that have not been fully identified. The Stewart Center offers developmental and psychological evaluations that can determine whether a student has a previously undiagnosed problem such as autism spectrum disorder, anxiety, depression, attention deficit/ hyperactivity disorder or a learning disability that could be affecting their functioning.

Frequently Asked Questions


What is the current wait time to get testing completed?

Our current wait time is approximately 2-8 weeks for testing. Because we are committed to early intervention, we do place a priority on infants and young children whose parents or doctors are concerned about developmental delays. During certain times of the year, the wait may be slightly more or less depending on the demand.

What tests do you use?

We blend a number of methodologies to ensure that we are getting a full picture of each client's strengths and opportunities for growth. At your consultation we will discuss the appropriate instruments to use and explain to you how each method works.

I think my child has autism. Why are you testing for other things?

Children with neurodevelopmental disorders are often misdiagnosed when one test is completed. Also, there is a high likelihood that a child with a neurodevelopmental disorder such as autism might also have co-occurring conditions such as a language disorder, ADHD or a learning disability. By performing a full range of testing, we can better identify a child’s needs and get them the help and supports they need to be successful in school and in life.

Why does it take so long to get my child’s report?

A typical wait time to receive completed reports is 8 weeks following the completion of testing. We do a thorough evaluation and ensure that all areas in question are fully evaluated. Whereas some clinics only provide minimal testing and a brief explanation of results, this approach often doesn’t give a full picture of the needs of each child. Our reports explain each measure used, explain how your child performed, and most importantly, explain what that information means. All of the information is then summarized in understandable language that results in the explanation of any diagnoses. Each report ends with the individualized recommendations for you or your child’s continued development and success. Recommendations may address: referrals for services, specific strategies for improving social development, strategies for emotional coping, suggested academic accommodations or modifications, behavioral support and strategies, family-based suggestions, and other areas as needed. Though this individualized report takes time to prepare for your family, we can meet just days after testing is completed for a feedback session where results are explained in detail. The written report that follows includes all of the information (and more) discussed in the feedback session.

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