The DSM-5 diagnostic criteria for Attention Deficit/Hyperactivity Disorder divide the symptoms in two main clusters: Hyperactivity/Impulsivity and Inattention. The symptoms of inattention include failure to pay attention to details, making careless mistakes, trouble sustaining attention, quickly loosing focus, getting easily sidetracked, and failing to finish tasks such as chores or homework in the expected time. In addition, feeling distracted by other extraneous events and forgetfulness add to the clinical picture. This may manifest in difficulties sustaining attention for extended periods in the classroom, during reading, and during homework.
Attention deficit/hyperactivity disorder medical expert witness specialties include child psychiatry, autism, pediatrics, psychiatry, and forensic psychiatry.