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ADHD Rating Scale-IV (ADHD-RS)
How to Use
The ADHD Rating Scale-IV obtains parent ratings regarding the frequency of each ADHD symptom based on DSM-IV criteria. Parents are asked to determine symptomatic frequency that describes the child’s home behavior over the previous 6 months.
The ADHD Rating Scale-IV is completed independently by the parent and scored by a clinician. The scale consists of 2 subscales: inattention (9 items) and hyperactivity-impulsivity (9 items). If 3 or more items are skipped, the clinician should use extreme caution in interpreting the scale. Results from this rating scale alone should not be used to make a diagnosis.
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How to Score
For inattention (IA) subscale raw score: Add the odd-numbered items
For hyperactivity-impulsivity (HI) subscale raw score: Add the even-numbered items
To obtain the total raw score: Add the IA and Hi subscale raw scores
Convert the raw scores to percentile scores by using the appropriate scoring profile provided on the back of the rating scale.
DuPaul GJ, Power TJ, Anastopoulos AD, Reid R. ADHD Rating Scale-IV: Checklists, Norms,
and Clinical Interpretation. New York: The Guilford Press; 1998.
