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    Diagnostic Process

    How Do Doctors Test for ADHD? Inside the Evaluation

    7 min readUpdated February 13, 2026

    👉 Take the free 18-question ADHD self-test (3 min) on the homepage — Start the ADHD Test.

    The evaluation framework

    A clinician will combine four streams of evidence: your self-report, structured rating scales, a clinical interview, and (sometimes) collateral or cognitive testing.

    Common questions doctors ask

    When did you first notice these symptoms? How do they affect work, relationships, and self-care? Have you ever been treated for anxiety, depression, or sleep issues? Family history of ADHD or other mental health conditions? Substance use? Medical conditions like thyroid issues?

    The rating scales they use

    ASRS-v1.1, CAARS, BAARS-IV, Wender Utah, and sometimes the DIVA-5 (a structured DSM-5 interview). Our homepage test uses the same ASRS questions.

    Differential diagnosis

    Good clinicians rule out conditions that mimic ADHD: anxiety disorders, depression, PTSD, sleep apnea, hypothyroidism, perimenopause, autism, and bipolar II.

    Reaching a diagnosis

    DSM-5 requires 5+ symptoms in adults (vs. 6 in kids), present before age 12, in 2+ settings, with clear functional impairment, not better explained by another condition.

    Related guides

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