 The diagnosis of ADHD can represent family dysfunction or a poor educational system rather than an individual problem . Some cases may be explained by increasing academic expectations , with a diagnosis being a method for parents in some countries to get extra financial and educational support for their child . The youngest children in a class have been found to be more likely to be diagnosed as having ADHD possibly due to their being developmentally behind their older classmates . Behaviors typical of ADHD occurs more commonly in children who have experienced violence and emotional abuse . 
