ADD is a term used to describe inattention and ADHD describes symptoms of impulsivity and hyperactivity. Different symptoms may appear in different settings, depending on the demands the situation may pose for the child’s self-control. A child who “can’t sit still” or is otherwise disruptive will be noticeable in school, but the inattentive daydreamer may be overlooked.  The impulsive child who acts before thinking may be considered just a “discipline problem,” while the child who is passive or sluggish may be viewed as merely unmotivated. Yet both may have different types of ADHD and because they are different across setting, this makes it difficult to diagnose.

ADHD is considered one of the most common developmental disorders affecting 3-5% of school age population.

People who have ADD generally show signs of inattention:

• Fails to pay close attention to details or makes careless errors in schoolwork, work or other activities
• Keeping attention on tasks or play
• Doesn't appear to listen when being told something
• Neither follows through on instructions nor completes chores, schoolwork, or jobs (not due to failure to understand or a deliberate attempt to disobey)
• Organising activities and tasks
• Dislikes or avoids tasks that involve sustained mental effort (homework, schoolwork)
• Loses materials needed for activities (assignments, books, pencils, tools, toys)
• Easily distracted by irrelevant information
• Forgetful

Impulsiveness & Hyperactivity

• Often fidgets with hands or feet or squirms in seat when sitting still is expected.
• Often gets up from seat when remaining in seat is expected.
• Often excessively runs about or climbs when and where it is not appropriate (adolescents or adults may feel very restless).
• Often has trouble playing or doing leisure activities quietly.
• Is often "on the go" or often acts as if "driven by a motor". 
• Often talks excessively.
• Often blurts out answers before questions have been finished.
• Often has trouble waiting one's turn.
• Often interrupts or intrudes on others (e.g., butts into conversations or games).