<prompt> Which is not a feature of ADHD?Inappropriate hyperactivityImpulsivenessInattentionDyslexia  <response>: D Dyslexia Attention Deficit Hyperactivity Disorder ADHD ADHD is one of the most common psychiatric diagnoses made in school age population seen in 3-10 of school children. ADHD is characterised by an age inappropriate hyperactivity, impulsiveness and inattention. The disorder is divided into three classes: Class I: all three symptoms majority: Class II: first two only; Class III: mainly the third relatively uncommon. Hyperactivity is usually the first symptom to be noticed. It is three times more common in boys than girls. 