ADHD Assessment - Is it Right For You? A private assessment can take up to 2 hours, and includes a clinical interview with an expert in ADHD. It is useful to bring with you a friend or family member for support, but this is not required. A complete psychiatric record https://psychiatryinuk32745.howeweb.com/30411887/the-most-important-reasons-that-people-succeed-in-the-adhd-assessment-uk-private-industry