There are many online adhd self tests that can help you determine if you may have ADHD. You can also use them for your children but you may not get very accurate results. For most adults who are worried that maybe they have a disorder and should take a few little checklists online to make themselves feel better, do need some sort of help. Even if it's a job change. Most will take these tests and feel ok. We passed. We don't have ADHD. What these tests don't tell you is if you have ADD. Since ADHD is more popular as a term because the hyperactivity is at the more noticeable side of the ADHD spectrum. These ADHD tests can not also test to see if you may have ADD. ADD is the same but there is not hyperactivity. They can sit for hours, quietly but will not be paying attention to anything. These may sit quiet through class but retain absolutely nothing from the lesson. They are then considered not as smart and generally left alone by the school system.