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Diagnostic Criteria

The major DSM-IV criteria for ADHD are as follows:

A. Six or more of the following symptoms of inattention:

  1. Often fails to give close attention to details or makes careless mistakes;
  2. Often has difficulty sustaining attention;
  3. Often does not seem to listen when spoken to directly;
  4. Often does not follow through on instructions and fails to finish work or chores;
  5. Often has difficulty organizing tasks and activities;
  6. Often avoids, dislikes, or is reluctant to engage in tasks that require sustained mental effort;
  7. Often loses things necessary for tasks or activities;
  8. Is often easily distracted by extraneous stimuli;
  9. Is often forgetful in daily activities.

B. Six or more of the following symptoms of hyperactivity/impulsivity:

Hyperactivity

  1. Often fidgets with hands or feet or squirms in seat;
  2. Often leaves seat in classroom or in other situations where remaining seated is expected;
  3. Often runs about or climbs excessively in situations in which it is inappropriate (in adolescents or adults, may be limited to subjective feelings of restlessness);
  4. Often has difficulty playing or engaging in leisure activities quietly;
  5. Is often "on the go" or acts as if "driven by motor;"
  6. Often talks excessively;

Impulsivity

  1. Often blurts out answers before questions have been completed
  2. Often has difficulty awaiting turn
  3. Often interrupts or intrudes on others.

Additional diagnostic criteria include:

  • Some symptoms should have begun prior to age 7.
  • Some impairment should be present in at least two settings (e.g., both at home and at school).
  • There must be clear evidence of clinically significant impairment in functioning as a result of the inattention or hyperactivity/impulsivity.
  • The symptoms are not better explained by some other disorder.