Instructions

Below are 18 statements describing behaviours associated with ADHD. Please indicate how often each applies to you.

There are no right or wrong answers — please respond based on how you have typically been over the past six months.

Note: This is a screening tool based on DSM-5 criteria, not a diagnostic instrument. It measures symptoms associated with ADHD that can vary in the general population.

Your Results

Based on your responses to the ADHD-RS-IV

0 / 54

Low (0–18) Moderate (19–36) High (37–54)

What This Means

Important Note

The ADHD-RS-IV is a screening tool based on DSM-5 criteria, not a diagnostic instrument. ADHD can only be diagnosed through comprehensive clinical assessment by a qualified professional. Many conditions can produce symptoms similar to ADHD, and a thorough evaluation considers developmental history, functional impairment, and alternative explanations.

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About the ADHD-RS-IV

The ADHD Rating Scale IV (ADHD-RS-IV) maps directly to the 18 DSM-5 diagnostic criteria for Attention-Deficit/Hyperactivity Disorder. The odd-numbered items assess inattention symptoms and the even-numbered items assess hyperactivity-impulsivity symptoms. This structure mirrors the clinical diagnostic process, making it useful for both screening and symptom monitoring.

Inattention (items 1, 3, 5, 7, 9, 11, 13, 15, 17) — Difficulty with focus, organisation, and task completion
Hyperactivity-Impulsivity (items 2, 4, 6, 8, 10, 12, 14, 16, 18) — Restlessness, excessive activity, and impulsive behaviour

Each subscale ranges from 0 to 27. A subscale score of 14 or above is considered clinically significant. The total score ranges from 0 to 54.