ADHD Assessment - Is it Right For You? A private assessment can take up to two hours and includes a clinical interview with an expert in ADHD. It is helpful to bring an adult friend or family member for support, but it's not necessary. The entire psychiatric history is examined https://private-adhd-assessment79887.blogdosaga.com/29326493/a-proactive-rant-about-adhd-assessment-uk-private