What a psychological evaluation actually involves

“I need to get tested for ADHD” and “I need a therapist” send you to different places. Testing — formal psychological assessment — is its own service with its own timeline and its own price, and it is mostly done by one profession.

Who does it

Psychologists. A doctoral degree (PhD, PsyD, EdD) plus supervised training in assessment is what qualifies someone to administer and interpret standardised psychological tests, and in most states psychologists are the non-physician profession licensed to do it.

Neuropsychologists are psychologists with further specialisation in the relationship between brain conditions and thinking. If the question involves a head injury, a stroke, suspected dementia, epilepsy or a neurological diagnosis, that is the specialism to look for.

Master’s-level therapists — LCSWs, LPCs, LMFTs — generally do not perform formal psychological testing. Many use screening questionnaires, which is a different and much lighter thing.

What it is for

Roughly four reasons people seek it out:

Diagnostic clarification. Symptoms overlap. Attention problems can come from ADHD, anxiety, depression, sleep, trauma or a learning disorder, and the treatment differs. Testing is a way of distinguishing them systematically rather than by trial and error.

Documentation. This is the practical driver. Schools and universities require an evaluation for accommodations. Employers may for workplace accommodations. Disability claims, court proceedings and some medication authorisations require a formal report. A therapist’s opinion in a session note is generally not accepted; an evaluation report is.

Learning disorders. Diagnosing dyslexia, dyscalculia and similar requires standardised achievement and cognitive testing.

Cognitive change. After an injury or illness, or where memory or concentration has changed, to establish a baseline and track it.

What actually happens

A clinical interview first — history, symptoms, education, medical background, what prompted the referral. An hour or two.

Standardised tests. Structured tasks and questionnaires with published norms: cognitive measures, attention and memory tasks, academic achievement tests, personality inventories, depending on the question. Two to six hours is typical, sometimes over more than one visit.

Collateral information. With your permission, questionnaires from a partner, parent or teacher, and review of school or medical records.

Scoring and interpretation. Done afterwards, and it is the bulk of the psychologist’s time.

A feedback session. They walk you through the findings and what they mean.

A written report. The deliverable — findings, diagnoses if any, and recommendations. This is what you give the school or the employer.

End to end, expect two to six weeks from first appointment to report. Ask at booking, because it varies a lot and matters if there is a deadline.

Cost, and why it is high

A full battery is several hours of face-to-face time plus several more of scoring and writing. Prices in the low four figures are common in private practice, higher for comprehensive neuropsychological work.

Ways it can cost less:

• Insurance sometimes covers it when there is a clear medical necessity, often with prior authorisation. Ask what documentation the insurer needs before booking.
• School districts are obliged to evaluate for special education eligibility at no cost to the family under IDEA. Request it in writing; there are timelines the district must meet.
• University disability services sometimes accept a narrower assessment than a full battery. Ask what they actually require before paying for more than you need.
• University training clinics offer assessment at reduced cost under supervision.

Questions worth asking upfront

• “What will the total cost be, and what is included?”
• “How long from first appointment to written report?”
• “Will the report meet [the specific school’s / employer’s] requirements?” — ask the requesting institution what they need first, then check.
• “Do you have experience assessing adults?” — much ADHD and autism assessment expertise is oriented to children, and adult presentation differs.

Finding one here

Psychologists on this site are listed under the mental health track. The taxonomy distinguishes clinical psychologists, clinical neuropsychologists and several other specialisations, each with its own page. Neuropsychologists are a small group — the state page for your state will show how many are registered, which is a realistic guide to how far you may need to travel.