What are the clues that your child has attention-deficit/hyperactivity disorder, or ADHD? To start, HealthyPlace has a quiz you can take (Free Online ADHD Child Quiz). It includes many of the typical signs of ADHD. However, as a parent, I realize you didn’t come here to learn how clinicians see the disorder. You want to know how ADHD looks and feels on a daily basis. You want to know if you’re overreacting to behaviors or not. You want to know if your child has ADHD.