Keywords: ADHD Barkley Essential Ideas Attention Deficit Hyperactivity Disorder (Disease Or Medical Condition) ADD Attention Deficit Disorder (Disease Or Medical Condition) Subtypes Conduct Disorder (Disease Or Medical Condition) ADHD Inattentive ADHD Hyperactive ADHD Combined ADHD-PI ADHD-PH ADHD-C DSM IV DSM V Diagnostics and Statistical Manual