Attention Deficit Hyperactivity Disorder (ADHD) Practice Test 2026 - Free ADHD Practice Questions and Study Guide

ADHD, or Attention-Deficit/Hyperactivity Disorder, is characterized by symptoms of inattention, hyperactivity, and impulsivity. In contrast, ADD, or Attention Deficit Disorder, is a term that was historically used to describe individuals who have difficulties with attention but do not exhibit significant hyperactive or impulsive behaviors.

The key distinction lies in the presence of hyperactivity. Individuals diagnosed with ADHD display hyperactive behaviors such as excessive fidgeting, talking, or difficulty sitting still. In contrast, those who would have previously been diagnosed with ADD may struggle with attention and focus but do not demonstrate noticeable hyperactive behavior.

This differentiation is essential for accurate diagnosis and appropriate interventions. Understanding this distinction aids in recognizing that both conditions fall under the umbrella of attention-related disorders, but they manifest in different ways, particularly concerning hyperactivity.