ADHD (Attention-Deficit/Hyperactivity Disorder) is a neurodevelopmental condition affecting approximately 9–11% of school-age children in the United States, characterized by persistent inattention, hyperactivity, and/or impulsivity that impairs functioning across settings. Managing ADHD effectively requires a multi-modal approach — diagnosis, behavioral supports, school accommodations, and often medication all working together. The single most important mental model for parents: ADHD is not a deficit of knowledge but a deficit of performance, meaning children with ADHD often know what to do yet struggle to do it consistently without external structure and support.
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Table 1: DSM-5 ADHD Diagnosis Criteria and Presentations
ADHD is diagnosed by clinicians using the DSM-5 framework, which specifies symptom counts, age of onset, and cross-setting impairment. Understanding these criteria helps parents recognize when professional evaluation is warranted and prepares them for the assessment process.
| Criterion | Example | Description | |
|---|---|---|---|
Careless mistakes, loses items, easily distracted, doesn't follow through on tasks | • Requires ≥6 symptoms of inattention (≥5 for age 17+) persisting ≥6 months • child often appears "dreamy" or forgetful | ||
Fidgets, leaves seat, runs/climbs inappropriately, blurts answers, can't wait turn | • Requires ≥6 symptoms of hyperactivity/impulsivity (≥5 for age 17+) persisting ≥6 months • most visible in young children | ||
Child meets full criteria for both inattention and hyperactivity-impulsivity | • Most common presentation • meets the ≥6 threshold in both symptom clusters simultaneously | ||
Symptoms reported by parents and teachers present since kindergarten | • Several symptoms must have been present before age 12 • retrospective report from parents and teachers is standard | ||
Attention problems both at home AND in school | • Symptoms must cause clear impairment in two or more settings (home, school, social) • impairment in only one setting may indicate another cause | ||
Symptoms not better explained by anxiety disorder or mood episode | Must confirm symptoms are not solely due to another mental disorder (anxiety, mood disorders, schizophrenia spectrum, dissociative disorder) | ||
A child may shift from combined to inattentive presentation over time | DSM-5 replaced DSM-IV's fixed "subtypes" with "presentations" because symptom emphasis can change across development |