ADHD Assessment - Is it Right For You? A private assessment can last up to 2 hours, and includes a consultation with a specialist in ADHD. It is helpful to bring an adult family member or a friend to provide support, but this is not necessary. A complete psychiatric history https://jaredtsmhv.mybjjblog.com/many-of-the-common-errors-people-make-with-adhd-assessment-uk-private-43067121