ADHD Testing for All Ages

Diagnostic Assessments for Attention-Deficit/Hyperactivity Disorder (ADHD)
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ADHD is one of the most common neurodevelopmental disorders, affecting approximately 1 in 10 school-aged children and about 10 million adults in the US. Common characteristics of ADHD include:

  • Difficulty completing a task before starting another
  • Trouble concentrating
  • Forgetfulness
  • Fidgeting or restlessness

Clinicians recognize ADHD as one of three variations:

  • Inattentive type
  • Hyperactive/Impulsive type
  • Combined type

For children and teens, ADHD can make it harder to manage everyday tasks like organizing, planning, remembering instructions, or staying focused—often affecting school performance, home life, and social relationships.

In adults, ADHD can impact productivity, follow-through, and attention to detail, which may lead to challenges in academic or professional settings. It can also affect friendships, romantic relationships, and self-esteem.

Without a proper diagnosis, ADHD symptoms often go unaddressed and may increase the risk of anxiety, depression, or substance use.

Because ADHD doesn’t look the same for everyone, it’s important to work with someone who understands its many forms. Our psychologists specialize in identifying ADHD across ages and presentations. A thorough evaluation is the first step toward clarity, support, and effective care.

What are the symptoms of ADHD?

One of the tricky parts recognizing ADHD is that many of its symptoms can resemble things everyone experiences from time to time. What sets ADHD apart is the intensity, frequency, and long-term impact of these symptoms.
Inattentive type symptoms might include:
  • Forgetfulness
  • Difficulty listening
  • Challenges with organization
Hyperactivity / Impulsive or Combined type symptoms might also include:
  • Impulsivity, like a tendency to interrupt others
  • Nearly constant movement or restlessness that’s hard to manage
It’s also common for individuals with ADHD to experience co-occurring symptoms like insomnia, anxiety, or depression, often as a result of ongoing challenges with focus, regulation, or daily functioning.

While most people occasionally identify with some of these behaviors—especially during times of stress or fatigue—people with ADHD experience them consistently from a young age. These symptoms often interfere with their schooling, work, relationships, and overall quality of life.

How is ADHD diagnosed and treated?

There are effective, evidence-based ways to diagnose and treat ADHD—including Cognitive Behavioral Therapy (CBT), medication, or a combination of both. Getting the right diagnosis is the first step toward finding the support that works for you or your child.

At Therapy Lab, our assessments offer a targeted, science-backed approach to help provide clarity around symptoms, recommendations for next steps, and any documentation needed to move forward with treatment or accommodations. Many people choose this assessment when in need of an IEE.

ADHD is often misunderstood or overlooked, especially in people who don’t recognize their symptoms until adulthood. And while it’s sometimes viewed as an overdiagnosed condition, ADHD is actually underdiagnosed in many individuals who could benefit from treatment. In very young children (under age four), symptoms can also be difficult to distinguish from typical developmental behavior.

How Diagnostic Assessments Work

We don’t take a one-size-fits-all approach to ADHD testing at Therapy Lab. Your clinician will complete only the assessments needed to confidently determine whether a diagnosis is appropriate—no unnecessary tests or tasks, just what’s clinically useful.

We also move faster than traditional providers, so you won’t have to wait months for an appointment or answers. Most clients and families receive results within six weeks.

Our assessments are designed with the neurodivergent brain in mind. We know testing can feel stressful, so we do everything we can to make the process affirming, individualized, and as comfortable as possible.
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What are the benefits of testing for ADHD?

Understanding ADHD—and how its symptoms uniquely affect you or your child—can help guide the process of securing proper accommodations and treatment, while also highlighting personal strengths that support long-term success.

Access accommodations at school or work

A formal ADHD diagnosis can help you or your child qualify for accommodations—like an Individualized Education Plan (IEP) at school or workplace support such as written instructions, quiet workspaces, headphones, or movement breaks.

Understand yourself or your child better

Why do I/they do ____? Why is ____ so challenging for me/them when it seems so easy for everyone else? An ADHD diagnosis can offer insight into long-standing questions and frustrations..

Recognize long-term effects

Without diagnosis and treatment, ADHD is linked to higher risk for anxiety, mood disorders, and challenges in school, work, and relationships.

Experience greater self-compassion

Knowing more about yourself and the differences in experience you may have from the neurotypical world can lead to more self-acceptance. With further understanding of your identity, we hope you will experience higher levels of self-compassion.

Experience greater self-compassion

Knowing how your brain works (or your child’s) can foster self-acceptance and reduce feelings of shame or “falling behind.”

Determine appropriate treatment or support

We’ll recommend next steps tailored to your needs. These might include individual therapy, social skills groups, support for daily living skills, or executive function coaching..

What should I expect for the evaluation?

Results Appointment

Once testing and information gathering are complete, we’ll schedule a follow-up to walk through the findings and any diagnoses.

This appointment includes:

  • A review of your results
  • A conversation about any diagnoses given
  • Clear guidance on next steps
  • Time to ask questions

We've designed this appointment with different learning styles in mind. We'll go through your testing results, any diagnoses, and next steps using visual aids. 

Prefer a streamlined version? No problem. We’ll provide a condensed report that includes the most essential takeaways: summaries of completed testing, any diagnoses,* and our recommendations.

*We provide formal DSM-5/ICD-11 medical diagnoses that you can share with other health providers, insurance companies, schools, state programs, and any other support services, programs, organizations, or institutions that require documentation.

Discovery Appointment

Your evaluation starts with a conversation. In this first appointment, you’ll meet with one of our licensed psychologists who specializes in neurodivergence. 

During this appointment, we’ll:

  • Review the results of a few questionnaires you'll have completed before your appointment
  • Talk about your current concerns
  • Confirm that our assessment options align with your goals
  • Plan an individualized evaluation for you or your child

We offer remote assessments for clients in California and Washington, as well as in-person appointments at our Los Angeles office.

Assessment Components

Assessments are personalized and may include:
  • Interview about possible symptoms of Autism Spectrum Disorder (ASD) and/or ADHD
  • Daycare or school observation
  • Friends, family, and teacher interviews
  • Evaluation of social abilities
  • Questionnaires about daily living skills
  • Assessment of mood or anxiety symptoms
  • Computer testing
  • IQ testing
  • Collaborating with other providers
  • Exploration of “masking” symptoms 

Pricing

The cost of the assessment is determined by your specific needs. The average assessment costs $3,000.

For more information on pricing, contact us.

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How long does it take?

Most adults complete about 5 hours of testing over the course of 2 to 3 appointments.

For children and their families, the process typically takes about 6 hours of testing across 2 to 3 appointments.

If your assessment includes third-party questionnaires, please note that it can take up to six weeks to complete this part of the process.

Assessments are available for individuals in California (in person and via video) and Washington (video only).