ADHD Testing & Evaluation for Adults
If you've been wondering whether attention, focus, or executive functioning challenges are holding you back — an ADHD evaluation can give you answers. Comprehensive ADHD testing goes far beyond a simple checklist. It maps the unique architecture of your attention, memory, and cognitive processing, producing a clear picture of your strengths alongside your challenges. Whether you're a student pursuing accommodations, a professional seeking clarity, or a parent advocating for your child, the right evaluation opens the door to targeted support.
Our ADHD assessments are conducted by Dr. Alan S. Jacobson, Psy.D., MBA, a licensed clinical psychologist with over 25 years of experience, licensed in Massachusetts, California, New Hampshire, and New York, with PSYPACT authority to practice virtually across 44 states. Evaluations are available in-person in greater Boston and San Diego, or virtually nationwide.
Not sure if an ADHD evaluation is right for you? A free 15-minute consultation can help you decide.
Schedule a Free Consultation Ask Us a QuestionWhat ADHD Testing Can Do For You
A well-conducted ADHD evaluation is an investment in self-understanding. Here is what it can unlock:
Deepen Self-Understanding
ADHD is not one thing. Testing reveals your specific cognitive profile — where attention lapses, where working memory is taxed, and where you have untapped strengths — so that support can be precisely targeted.
Reduce Stress & Confusion
A diagnosis brings language and context to experiences that may have felt like personal failings. Understanding undiagnosed ADHD in adults can relieve years of unnecessary self-blame and help those around you understand as well.
Build Better Coping Strategies
Test results translate directly into evidence-based recommendations — from organizational tools and environmental accommodations to therapy approaches like CBT techniques or ADHD coaching — tailored to your specific cognitive profile.
Access Accommodations
A comprehensive report provides the documentation required for school 504/IEP plans, college accommodations, high-stakes exam accommodations (LSAT, MCAT, bar exam, GRE), and workplace accommodations.
Track Progress Over Time
Baseline assessment data allows you to measure whether medication, therapy, or coaching strategies are working — and to adjust your approach based on objective evidence rather than guesswork.
Uncover the Full Picture
ADHD rarely travels alone. Testing screens for co-occurring anxiety, depression, learning disabilities, autism spectrum features, and sleep disorders — ensuring you get a plan that addresses everything affecting your performance, not just one label.
We also have specialty services for ADHD in women, ADHD in teenage girls, and ADHD assessments for teens, because presentation and diagnostic challenges often differ significantly by age and gender.
Ready to get started? We offer evaluations for adults, teens, and children.
Schedule a Free Consultation →Our Clinical Commitments
- Multi-informant data: We gather information from multiple sources whenever possible. Teens are often asked to obtain teacher reports; adult self-reports are supplemented by collateral history from people who know you well.
- Medication-status planning: When clinically relevant, we schedule testing off medication or time it to capture a meaningful baseline — and we'll discuss this with you in advance.
- DSM-5 standards: Reports are explicit about functional impairment and developmental onset — both required under DSM-5 criteria for a valid ADHD diagnosis.
- Actionable recommendations: Every report includes three tiers of recommendations: (1) short-term practical interventions, (2) longer-term therapy and medication options, and (3) accommodations language suitable for schools, exam bodies, and employers.
Who Benefits From ADHD Testing?
| Population | What the Evaluation Addresses |
|---|---|
| Children (Elementary–High School) | Clarifies ADHD subtype (inattentive, hyperactive/impulsive, combined); identifies co-occurring learning disorders or language problems; informs school accommodations (IEP/504), classroom interventions, and parent coaching. |
| Adolescents & College Students | Distinguishes ADHD from anxiety, depression, or sleep disorders; provides documentation for college accommodations (extended time, distraction-reduced testing); informs decisions about medication and academic coaching. |
| Adults | Differentiates lifelong patterns from new-onset attention problems or age-related cognitive changes; informs workplace accommodations, therapy targets, and medication recommendations; identifies comorbid mood, substance use, or sleep disorders. |
| High-Stakes Contexts | Provides objective documentation for LSAT, MCAT, bar exam, GRE, GMAT accommodations, vocational planning, and disability evaluations. |
ADHD Testing Instruments & Measures
A rigorous ADHD evaluation draws on multiple categories of instruments. No single test confirms a diagnosis — the power is in the integration of findings across measures, history, and real-world functioning. Per CDC guidance and the CHADD professional guidelines, diagnosis requires cross-setting impairment and developmental onset — not simply a high score on a checklist.
1. Continuous Performance Tests (CPTs)
These computerized tasks measure sustained attention, response inhibition, reaction time, and variability under controlled conditions — providing objective, performance-based data to complement rating scale findings.
- Conners CPT-3 Measures sustained attention, impulsivity, and reaction-time variability over ~14 minutes. Sensitive to attention lapses and impulsive responding across children and adults.
- TOVA (Test of Variables of Attention) Visual or auditory sustained-attention task producing omission/commission errors and response time data. Long history of clinical use.
- IVA-2 Assesses attention and response control in both auditory and visual modalities — useful when modality-specific weaknesses are suspected.
2. ADHD Rating Scales & Symptom Checklists
Multi-informant rating scales establish symptom presence and severity across home, school, and work settings — a requirement for valid diagnosis.
- Conners 3 / CAARS Assess ADHD symptom clusters (inattention, hyperactivity/impulsivity), executive functioning, and emotional problems via parent, teacher, and self-report versions.
- ADHD Rating Scale-5 / Vanderbilt / BAARS-IV DSM-linked symptom counts and severity ratings across developmental stages.
- Adult ADHD Self-Report Scale (ASRS-v1.1) An 18-item self-report screener for inattentive and hyperactive/impulsive symptoms; not diagnostic on its own, but useful for flagging when a full evaluation is warranted.
- Wender Utah Rating Scale (WURS) A retrospective self-report measure asking adults to recall childhood behaviors, helping establish the developmental onset required for a valid diagnosis.
3. Intelligence & Cognitive Ability Tests
An IQ evaluation reveals the cognitive profile underlying attentional difficulties and determines whether inattentive behavior reflects global learning difficulty, a specific processing weakness, or is consistent with ADHD.
- WISC-V / WAIS-IV Digit Span, Letter-Number Sequencing, Coding, and Symbol Search subtests directly assess working memory, processing speed, and attentional control.
- Woodcock-Johnson IV Auditory Working Memory and Numbers Reversed subtests link attentional indices to academic skill areas.
4. Processing Speed Measures
Slow processing speed is common in both ADHD and learning disorders and can be mistaken for inattention. We assess it directly.
- WISC-V / WAIS-IV: Coding & Symbol Search Timed visual-motor tasks heavily weighted to the Processing Speed Index.
- Trail Making Test Part A Timed visual search and sequencing task sensitive to processing speed and visual attention.
- Conners CPT-3 reaction-time indices Reaction-time mean and variability metrics complement the standard attention measures.
5. Executive Function Scales
ADHD is as much an executive functioning disorder as an attention disorder. These scales capture real-world planning, organization, emotional control, and self-monitoring that may not appear on brief structured tasks.
- BRIEF-2 / BRIEF-A Child/adolescent and adult versions capturing executive difficulties across everyday contexts — school, home, and work.
6. Academic Achievement (When Indicated)
Determines whether inattentive symptoms co-occur with or are secondary to a learning disability such as dyslexia, dysgraphia, or dyscalculia. Critical for academic accommodations documentation.
- WIAT-4 / Woodcock-Johnson IV Achievement Reading, math, and writing assessments normed alongside cognitive measures for profile comparisons.
7. Co-occurring Condition Screens
Because concentration and attention are not specific to ADHD, we routinely screen for conditions that mimic or co-occur with it:
- Mood & anxiety: PHQ-9, BDI-II, GAD-7, BAI (adults); RCADS, SCARED, CDI (children/teens) — to rule out anxiety or depression as the primary driver of poor focus. Anxiety testing is often incorporated.
- Broad behavior scales: BASC-3, CBCL — screens for oppositional, conduct, and social difficulties that can overlap with or mask ADHD.
- Autism spectrum: SRS-2, SCQ — distinguishes ADHD-related inattention from social-communication differences. See our autism testing services.
- Sleep screens: Epworth Sleepiness Scale, Pediatric Sleep Questionnaire — sleep disorders can mimic ADHD almost perfectly. When indicated, we may recommend CBT-i before confirming a diagnosis.
- Substance use: AUDIT (alcohol), DAST (drugs) — particularly important for adolescents and adults, and for safe stimulant prescribing.
- Adaptive behavior: Vineland, ABAS-3 — especially in children, to measure whether cognitive difficulties affect daily life skills.
Each measure adds context. The goal is to avoid overdiagnosis and ensure every recommendation fits the actual needs of the individual — whether those stem from attention regulation, mood, learning differences, sleep, or another factor.
Questions about which tests apply to your situation? Let's talk.
Schedule a Free Consultation →How Your ADHD Evaluation Results Are Used
Test results are not an end in themselves — they are the beginning of a plan. Here is how we use them:
- Diagnosis & differential diagnosis: Symptom counts, impairment evidence, and performance data are integrated to apply DSM-5 criteria and rule out conditions that produce similar symptoms — anxiety, sleep deprivation, learning disabilities, and mood disorders.
- Treatment planning: Targeted recommendations — whether medication, CBT for ADHD, skills coaching, or all three — are tailored to your specific cognitive profile.
- Accommodations & advocacy: Clear documentation for school 504/IEP plans, college disability services, and employer reasonable accommodations.
- Exam accommodations: Detailed letters meeting the documentation standards of the LSAC, AAMC, NCBE, ETS, and GMAC.
- Monitoring & re-evaluation: Baseline data allows you to measure whether interventions are working over time — objectively, not subjectively.
We also provide neuropsychological testing for ADHD when deeper exploration of cognitive mechanisms is warranted, and our reports highlight not only challenges but also the cognitive advantages that often accompany ADHD.
A Note on Test Limitations
We want you to be informed consumers of psychological assessment. A few important principles:
- No single measure "proves" ADHD. The diagnosis is clinical and requires cross-setting impairment and a developmental history — not just a score.
- Performance on testing days is influenced by motivation, fatigue, anxiety, and the testing environment. We account for these factors in our interpretation.
- Cultural, linguistic, and educational background affects normative comparisons. We always interpret scores in the context of appropriate reference norms and your full history.
- Medication status matters and is discussed with you proactively before testing begins.
ADHD Evaluation: Case Examples
The following illustrative cases show how a comprehensive evaluation leads to individualized, actionable recommendations — not just a diagnosis.
Case 1 — Child with Inattention, Anxiety, and Math Difficulties
Presentation: Maya's teacher reports frequent loss of focus and careless errors. Parents note a late bedtime, worry about math, and perfectionism at home.
Battery: Clinical interview; parent/teacher Conners 3; WISC-V; WIAT-4; CPT-3; BRIEF-2; SCARED anxiety screen.
Key Findings: Elevated inattention across settings; WISC-V Working Memory and Processing Speed Indexes in the borderline range; WIAT-4 math calculation below ability level (suggesting emerging math learning disorder); CPT-3 increased omission errors; SCARED elevated for separation and generalized anxiety.
Interpretation: Primary inattentive ADHD with working memory and processing speed weaknesses; co-occurring anxiety contributing to school avoidance and perfectionism; possible dyscalculia.
Recommendations: Multimodal plan including psychoeducation for parents and teachers; classroom supports; working memory strategies (visual organizers, chunking); extended time and reduced homework load; referral for CBT for anxiety; pediatrician consultation for possible stimulant trial; periodic academic monitoring.
Case 2 — College Student with Lifelong Undiagnosed ADHD
Presentation: Graduate student struggling with deadlines, missed lectures, and concentration. Reports lifelong difficulties, never previously assessed. Concerned about stimulant medication in a competitive academic program.
Battery: Clinical interview (developmental history); CAARS (self + collateral from parent); WAIS-IV; Digit Span/Letter-Number Sequencing; IVA-2; BRIEF-A; PHQ-9; GAD-7; sleep screen.
Key Findings: CAARS clinically significant inattentive symptoms; WAIS-IV Working Memory low-average, Processing Speed low; IVA-2 decreased sustained attention auditorially; PHQ-9 minimal; GAD-7 mild; irregular sleep schedule.
Interpretation: ADHD, predominantly inattentive presentation, with functional impact on graduate education; inconsistent sleep contributing to symptom expression.
Recommendations: Academic accommodations documentation; time-management coaching; structured planning tools; sleep hygiene intervention; stimulant medication discussion with provider; documentation letter for disability services.
Case 3 — Adult Professional with Mixed-Presentation ADHD
Presentation: Business owner with longstanding restlessness, poor time management, procrastination, missed deadlines, and relationship strain. Concerns about hiring and delegation.
Battery: Clinical interview including developmental history; BAARS-IV; WAIS-IV; WMS subtests; CPT-3; BRIEF-A; PHQ-9/GAD-7; substance use screen; medical review.
Key Findings: BAARS-IV mixed inattentive/hyperactive-impulsive symptoms across lifespan; WAIS-IV Processing Speed borderline, Working Memory low-average; CPT-3 elevated commission errors and inconsistent attention; PHQ-9 mild depressive symptoms; no substance misuse.
Interpretation: Longstanding ADHD with mixed features, affecting occupational functioning and mood.
Recommendations: ADHD coaching focused on business systems and delegation; time-blocking and task management tools; possible stimulant medication trial; couple/family psychoeducation for communication strategies; workplace accommodations documentation; periodic re-evaluation.
Frequently Asked Questions About ADHD Testing
These are the questions we hear most often. If yours isn't here, contact us or schedule a free consultation.
What does ADHD testing actually involve?
A comprehensive ADHD evaluation includes a clinical interview covering your history and symptoms, behavior rating scales completed by you and relevant others (parents, teachers, partners), computerized attention tasks, standardized cognitive tests (including memory and processing speed measures), and — when relevant — screens for co-occurring conditions such as anxiety, depression, or learning disabilities. The process results in a detailed written report with a diagnosis (or differential), cognitive profile, and specific recommendations.
How long does ADHD testing take?
The testing session itself typically takes two to three hours. Some rating scales and surveys can be completed in advance at home to reduce in-session time. After testing is complete, you'll have a one-hour feedback session to review findings and ask questions. The full report is usually delivered within two to three weeks of the testing date.
When will the ADHD evaluation report be ready?
We aim to deliver a draft report within one to two weeks of the completion of testing. We then schedule a feedback meeting to ensure the report fully addresses your questions. A final signed report is typically available within a week after that meeting.
Can adults be diagnosed with ADHD for the first time?
Yes — and this is more common than many people realize. The National Institute of Mental Health notes that ADHD often goes unrecognized in adults, particularly in those who developed compensatory strategies in childhood. Many high-achieving adults are diagnosed for the first time in college, graduate school, or the workplace when demands outpace those coping strategies. A retrospective developmental history is a core part of adult ADHD evaluations.
Does ADHD testing identify the need for accommodations?
Yes. One of the primary outcomes of a comprehensive evaluation is a detailed accommodations section in the report — with specific language suitable for school IEP and 504 plans, disability services offices, high-stakes testing bodies (LSAC, AAMC, NCBE, ETS, GMAC), and employers. We are experienced in meeting the documentation standards required by each of these organizations. See our pages on college accommodations, LSAT accommodations, and workplace accommodations.
Can ADHD testing be combined with other assessments?
Absolutely. ADHD evaluations are frequently combined with IQ testing, learning disability assessment, autism evaluation, personality testing, and executive functioning assessment. In fact, a comprehensive evaluation almost always incorporates multiple domains — because ADHD rarely occurs in isolation and the most useful recommendations come from understanding the full picture.
What is the difference between ADHD testing for adults vs. children?
While the underlying diagnostic criteria are similar, the evaluation process differs in important ways. For children, teacher reports and school records are central; the focus is on classroom functioning, learning disorders, and family-based interventions. For adults, the emphasis shifts to occupational functioning, relationship impact, long developmental history, and the differentiation of lifelong ADHD from new-onset conditions (such as anxiety, burnout, or early cognitive changes). We offer separate specialty services for teen ADHD and ADHD in women.
Should I take my ADHD medication before testing?
It depends on the clinical question. We discuss medication status with you before the evaluation. In some cases, testing off medication provides a clearer baseline; in others, testing on medication is more relevant to how you actually function day-to-day. There is no universal rule — we individualize this decision based on your situation and goals.
Is ADHD testing available virtually?
Yes. We offer telehealth ADHD evaluations to clients across 44 states through Dr. Jacobson's PSYPACT authority. Rating scales, clinical interviews, and many cognitive measures can be administered remotely using validated telehealth protocols. In-person evaluations are available in greater Boston, Massachusetts and San Diego, California. See our locations and virtual services page for details.
How is ADHD diagnosed — what are the criteria?
ADHD is diagnosed using the criteria outlined in the DSM-5, published by the American Psychiatric Association. A valid diagnosis requires: (1) a minimum number of inattentive and/or hyperactive-impulsive symptoms, (2) evidence that symptoms were present before age 12, (3) symptoms present in at least two settings (e.g., home and work/school), and (4) clear evidence of functional impairment. Testing provides the objective documentation needed to evaluate all four criteria. Per CDC guidance, a diagnosis should never be based on a single test or rating scale alone.
An ADHD evaluation can clarify what's been holding you back and open the door to the support you deserve. We'd be glad to talk through whether testing is the right next step.
Schedule a Free Consultation Send Us a QuestionEvaluations conducted by Dr. Alan S. Jacobson, Psy.D., MBA — licensed psychologist in Massachusetts (7110), California (PSY 34380), New Hampshire (1650), and New York (024941), with PSYPACT authority (#14929) in 44 states. Member, National Register of Health Service Psychologists.
