Attention: Website will be undergoing maintenance starting 8 am EDT on April 29, 2017 until 8 am EDT May 1, 2017. Online purchasing will not be available during this period. Items pending in shopping carts will be cleared after this maintenance period therefore users are advised to complete pending purchases prior to start of this maintenance period.

Conners 3AI™
Conners 3 ADHD Index

C. Keith Conners, Ph.D.

Technical Information

Age and gender significanty affect the scores on the Index forms, therefore the norms are broken down by age and gender.

The reliability of the Index forms has been addressed in several studies. Reliability estimates are based onr scores that were extracted from full-length Conners 3 administrations. The Conners 3AI  reliability studies include evaluation of internal consistency, test-retest reliability, inter-rater reliability, and standard error of measurement.

The mean adjusted inter-rater reliability for the Conners 3AI was .85.
Back to the top


Assessment Reports
Assessment Reports provides you with information about the youth’s scores and how they compare to other youth. This report also includes Feedback Forms which are helpful when you are presenting the results of the parent, teacher and self-report forms. The Feedback Forms will help you summarize the results in an easy to understand way. 

Progress Reports
Progress Reports combine the results of two to four administrations. This report highlights important changes that have taken place over time.

Comparative Reports
Comparative Reports compare the results of two to five administrations from different raters (e.g., mother, father, and a teacher) to establish the similarities and difference in reports of the youth’s functioning in different contexts. Back to the top

About the Author

C. Keith Conners, Ph.D.
Dr. C. Keith Conners has had an extraordinary and diverse career as an academic, clinician, researcher, lecturer, author, editor-in-chief, and administrator. His dedication to the study of ADHD and other childhood problems propelled him to the forefront of his field. His intense interest has led him to write several books, journal articles, and book chapters based on his research on ADHD and childhood disorders. He is highly recognized in the field of psychology for his numerous contributions.

In the course of his career, Dr. Conners was greatly intrigued by children exhibiting a diverse pattern of symptoms. He collected data on children from the general population and children with an existing symptom list who were referred to clinics, and eventually published the first version of the Conners’ Parent Rating Scale. The increasing use and popularity of the rating scales eventually made his original articles among the most cited in the literature on the subject.

Dr. Conners is now retired and is currently residing in North Carolina. He continues to lecture, present workshops on diagnosis and assessment, and serve as a consultant to numerous government and private organizations. Dr. Conners was the recent recipient of the lifetime achievement award from both the Association for Children and Adults with Attention-Deficit and Hyperactivity Disorder (CHADD) and the Mental Health Research Association (NARSAD). Back to the top


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