Dear Lauren,
You are
correctCorrect (new formula) in thinking that there is no test, per se, for Attention Deficit
Hyperactivity DisorderAdjustment disorder
Anorexia nervosa
Asperger syndrome
Autism
Autoimmune disorders
Bipolar disorder
Bipolar disorder
Bleeding disorders
Borderline personality disorder
Bulimia
Chronic motor tic disorder (technically, this is the
correctCorrect (new formula) name for the condition).
However, there is definitely an accepted method or process for evaluating the presence of this condition. The process includes interviewing the parent(s) and child, examining the child's
developmentalDevelopmental dysplasia of the hip
Developmental milestones record
Developmental reading disorder history, examining the family history, examining the recent school performance and school history, collecting standardized data via commonly-used behavior checklists (e.g., ADHD Rating Scale-IV, Basic Assessment System for Children, Child Behavior Checklist, Conners Behavior Checklist) which are completed by both parents and teachers, and scrutinizing the child's performance on any intelligence testing (e.g., WISC) that might be available.
If it is determined that the child displays a sufficient array of symptoms (ranging among three axes: inattention, hyperactivity, impulsivity) to qualify for the diagnosis, other possible explanations for the symptoms must be considered before settling on the diagnosis of ADHD.