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Conners 3AI™
Conners 3 ADHD Index

C. Keith Conners, Ph.D.


The Conners 3AI is included in the full-length Conners 3rd Edition™ (Conners 3™) or can be purchased separately. These 10 items are proven to be the best in differentiating between youth with ADHD from the general population. It can be used for screening individuals, monitoring treatment plans, measuring response to intervention, or when time is limited.

Spanish parent and self-report forms are available.

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Conners 3 Interpretive Update

Important refinements have been made to the Conners 3 including: (1) Updated Validity scale guidelines with new language to better reflect the intent of the scales; (2) Refined T-score cutoff categories and category descriptions; and (3) The Aggression scale name change to Defiance/Aggression. 

Find out more about the Conners 3 Interpretive Update.

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Scales & Forms

  • ADHD
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Author C. Keith Conners, Ph.D. 

Age Range
  • 6 to 18 years for teacher forms and parent forms
  • 8 to 18 years for self-report forms
Key Areas Measured
  • Attention-Deficit/Hyperactivity Disorder (ADHD)
Administration TimeApproximately 5 minutes

Administration Type
  • Parent-completed
  • Teacher-completed
  • Youth-completed
Qualification Level B