The Biggest Myths About ADHD Testing ADHD testing is widely misunderstood—and misinformation often prevents people from getting help. Let’s clear up the most common myths. Myth #1: ADHD Testing Is Just a Questionnaire Reality: Checklists are screening tools , not diagnostic evaluations. A real ADHD assessment includes: Clinical interview Symptom measures Executive function testing Attention and processing tasks Emotional screening Differential diagnosis Myth #2: If You Did W