Assessment & Testing
ADHD Assessment & IQ Testing
Real evaluation. Real expertise. Real answers.
Understanding how someone thinks, learns, and functions starts with more than checking a list of symptoms.
At Lilac Therapy Center, our assessments are conducted in person by an experienced, doctoral-level psychologist who takes the time to understand the whole person—not just a questionnaire or screening result.
Our evaluations consider your history, strengths, challenges, cognitive functioning, attention, executive functioning, and other factors that may be affecting how you or your child functions at school, work, home, or in relationships.
We offer ADHD assessments for children ages 5+, adolescents, and adults, as well as IQ-only evaluations.
COMPREHENSIVE ADHD EVALUATION – $2,500
A comprehensive evaluation provides an in-depth look at attention, executive functioning, cognitive abilities,
and other factors that may be contributing to your or your child's challenges.
Includes:
Thorough intake and review of background and history
Assessment of cognitive functioning, including IQ
Performance-based measures of sustained attention and impulse control
Broad exploration of executive functioning skills
Self- and observer-report rating scales
90-minute intake evaluation
3-hour testing session
Feedback meeting
Comprehensive report with individualized recommendations
A comprehensive evaluation may be appropriate for individuals and families seeking a more thorough understanding of ADHD-related concerns, cognitive functioning, and areas of strength and difficulty.
DIAGNOSTIC ADHD SCREENER – $1,000
A focused assessment designed to provide information about ADHD-related concerns and an individual's diagnostic profile.
Includes:
Thorough intake and review of background and history
Performance-based measures of sustained attention and impulse control
Self- and observer-report rating scales
2-hour testing session, including intake and performance measures
Feedback meeting
Report and recommendations focused primarily on the diagnostic profile
A focused screener may be appropriate for individuals and families looking for a more targeted evaluation of ADHD-related concerns.
A More Complete Picture
Why We Include Performance Measures in ADHD Evaluations
ADHD can affect much more than attention. It can influence impulse control, processing speed, working memory, cognitive flexibility, and executive functioning.
At Lilac, performance-based measures give us an opportunity to observe these skills directly in a structured setting — adding another layer of information to interviews, history, and rating scales.
What this can help us understand:
Attention and impulse control
Executive functioning and cognitive flexibility
Individual strengths and areas of difficulty
How cognitive skills may be affecting everyday life
Information that can help guide personalized recommendations
No single test can diagnose ADHD. A comprehensive evaluation brings together multiple sources of information to develop a clearer, more individualized picture of how a person thinks, learns, and functions.
The goal isn't simply to answer, “Does this person have ADHD?” It's to understand the whole person — and provide recommendations that are meaningful and useful.
Our Thoughtful Approach to Assessment
-
In-Person, Individualized Evaluation
Go beyond online questionnaires with face-to-face assessment and individualized clinical interpretation.
Options to Fit Your Needs
Choose from a comprehensive ADHD evaluation or a more focused diagnostic screener based on your concerns, goals, and needs.
Expertise Across the Lifespan
Our assessments are thoughtfully tailored for children ages 5+, adolescents, and adults, recognizing that ADHD can look very different at different stages of life.
Recommendations That Actually Help
We don't stop at a diagnosis. You'll receive individualized recommendations designed to address the specific areas where you or your child may be struggling—at school, at work, at home, or in relationships.
A Personalized Understanding
Every evaluation is different. We consider your unique history, strengths, challenges, and concerns to provide a clearer picture of what's really going on.
-
A Thoughtful, Individualized Process
Intake & Background Review: We begin by learning about your or your child's history, concerns, strengths, and current challenges.
Testing & Assessment: Testing is conducted in person and may include cognitive, attention, executive functioning, performance-based, and rating-scale measures depending on the evaluation selected.
Feedback & Recommendations: Following testing, you'll meet with the psychologist to review the findings. You'll also receive a written report and individualized recommendations based on the evaluation.
Assessment Across the Lifespan
ADHD doesn't look the same for everyone—and symptoms can change as people grow.
Our assessments are available for: Children ages 5+ • Adolescents • Adults
We consider developmental stage, individual history, strengths, challenges, and the environments in which concerns are showing up.
Meet Dr. Gabriella Terry
ADHD and IQ assessments for children, teens, young adults and adults are conducted by Dr. Gabriella Terry, an experienced, doctoral-level psychologist.
Dr. Terry brings extensive clinical experience from educational settings, college counseling centers, and community mental health.
Gabriella approaches assessment with the same person-centered philosophy that guides her clinical work. She believes that meaningful evaluation goes beyond identifying symptoms to develop a clearer understanding of an individual's strengths, challenges, cognitive functioning, and unique needs. Her goal is to provide thoughtful, individualized feedback and recommendations that help clients and families better understand how they think, learn, and function.
Additional Offering: IQ-Only Evaluations
IQ EVALUATION – $600
An IQ-only evaluation may be helpful for private school admissions, gifted testing, or other situations where an assessment of cognitive ability is needed.
Includes:
2-hour testing session
Brief IQ report
IQ-only evaluations do not include a formal feedback meeting or recommendations.
READY TO LEARN MORE?
If you're wondering whether an assessment may be helpful for you or your child, we're here to help.
Contact Lilac Therapy Center to discuss your concerns and learn more about the available
assessment options.

