ADHD Evaluation - What Happens in the First Step? A healthcare professional who is conducting an ADHD assessment will question you and people close to you -- a spouse, sibling or friend for adults -- about their symptoms. This can provide information that questionnaires cannot. It's harder to determine ADHD in adults, since the guidelines for diagnosis are created for children. It's important to find a doctor who specializes in the condition who takes the time with your evaluation. ...