ADHD Assessment - Why it's Important to Get a Private ADHD Diagnosis A thorough ADHD assessment is essential for anyone who suspects that they may be suffering from undiagnosed ADHD. The process can take between 2 and 3 sessions. It is recommended to bring along a friend or family member. https://psychiatryinuk30355.aboutyoublog.com/30340070/10-adhd-diagnosis-private-that-are-unexpected