The subject of Attention-Deficit Hyperactivity Disorder (ADHD) has undergone intense research in the past decade. Much of this is rooted in the fact that approximately 5% of the population and approximately 20% of school children are affected with the disorder. Children with ADHD are identified as having increased behavioral difficulties because of excessive motor activities, poor self- regulation and inattentiveness. It has been found that as many as 30% of children inflicted with ADHD have learning disabilities with academic underachievement becoming a common correlate. Since these children do not meet the expectations of society and their learning environment they are usually met with anger, punishment, and rejection. In turn these children develop a low-self esteem and low levels of motivation. Even though ADHD occurs in people with various intelligence levels, a majority of children affected experience academic problems. These children may have specific learning disabilities, such as dyslexia, or may have multiple learning problems. Learning disabilities can be said to arise from attention difficulties in the classroom setting. Many of these difficulties occur in tasks where listening and time is a factor. Reading disabilities have also been found as a result of ADHD. .
Testing the intelligence of ADHD involves a number of measures. Psycho educational testing is used to assess intellectual ability and to search for learning disabilities. Tests such as the Wechler Intelligence Scale are used for intelligence testing; yet, much debate exists because of the need to change the test to meet the child's attention deficit. It is quite often found that the majority of ADHD children improve with psycho pharmaceuticals, specifically stimulants such as Ritalin. Results reveal that medication related improvements include increased work output, improved accuracy and efficiency, and better learning acquisition.