Conners Rating Scales 3rd Edition (Conners 3)

Conners 3 materials (paper products) - while stocks last; Conners 3 Online Forms will be discontinued December 31st, 2023.


​Find out more about the Conners 4 here.

Author(s) : C. Keith Conners

Publisher : MHS, 2008


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Grouped product items
Product Name Qty
Conners 3 Self-Report DSM-5 QuickScore Form (pkg 25) - Conners 3–SR

SKU : 142CRS

Qualification required
Out of stock
Out of stock
Conners 3 Parent Software Response Booklet (pkg 25)

SKU : 136CRS

Qualification required
In stock
Conners 3 Teacher Software Response Booklet (pkg 25)

SKU : 137CRS

Qualification required
Out of stock
Out of stock

Purpose: Assess ADHD

Age: 6-18 years (Teacher & Parent Forms: 6-18 years; Self-Report Forms 8-18 years)

Administration: Full length: 20 minutes; Short Form: 10 minutes

Format: Hand-score; Software; Online

The Conners 3 uses observer ratings and self-report ratings to help assess attention deficit/hyperactivity disorder (ADHD) and evaluate problem behaviour in children and adolescents.

Each parent, teacher, and self-report form is available in full-length and short versions, and all are available in the QuickScore format.

Two indicies are contained within the Conners 3 full-length forms:

  1. Conners 3 ADHD Index (Conners 3AI)

A brief 10-item ADHD index. Suitable for screening a large group of children and adolescents to see if further assessment of ADHD is warranted. Additionally, this form can be used to monitor the effectiveness of treatment plans and measure the child’s response to intervention.

  1. Conners 3 Global Index (Conners 3GI)

A quick measure of general psychopathology. It offers individual subscale scores (ie, Restless-Impulsive and Emotional Lability) that are not provided on the full-length Conners 3 forms. It is especially useful for monitoring treatment and intervention.

The Conners instruments are used for routine screenings in schools, mental health clinics, residential treatment centres, paediatric offices, juvenile detention facilities, child protective agencies, and outpatient settings. The Conners 3 can:

  • Measure hyperactivity in children and adolescents through routine screening
  • Provide a perspective of the child's behaviour from those who interact with the child on a daily basis
  • Establish a base point prior to beginning therapy and monitor treatment effectiveness and changes over time
  • Provide valuable structured and normed information to further support conclusions, diagnoses, and treatment decisions when the parent, teacher, and self-report scales are combined
  • Address comorbid disorders such as Oppositional Defiant Disorder and Conduct Disorder.

Conners 3 Formats

Paper-and-Pencil Administration and Scoring

All Conners 3 forms (long and short) can be administered and scored using the MHS QuikScore format. The rater writes on the external layers of the form, and the results transfer through to a hidden scoring grid within the internal layers. The assessor then uses the internal layers for tabulating results. Each QuikScore form includes conversion tables, which are used to convert raw scores to T-scores.

Software Scoring

All Conners 3 forms can be scored using the scoring software by entering responses from a completed paper-and-pencil administration (response form) into the software program for immediate scoring and report generation. Assessment Reports, Progress Reports, and Comparative Reports are available.

Online Administration and Scoring

The Conners 3 can be completed and automatically scored online. Online administration allows the assessor the flexibility to send a link to each respondent to complete the assessment at a location (e.g., child care center, school). Assessors using online scoring also have the option of printing E-Paper forms that can be scored online by entering the responses.

Sample Online Conners 3 Parent Report

Sample Online Conners 3 Teacher Report

Sample Online Conners 3 Self-Report Report

DSM-5 Update

The Conners 3 has been updated to provide a scoring option for the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) Symptom Scales.

Updated DSM-5 QuickScore Forms for the Conners 3 Full-length Parent, Teacher and Self-Report are now available. All other materials have remained the same.

MHS Online Assessment Centre (MAC) and Software Users can select DSM-IV-TR or DSM-5 Scoring options. The MAC has been updated automatically, whereas Software users can download the update by clicking on “Check for Updates” under the Help menu within the Scoring Software. After the updates have been installed, users will have the option to choose to score with the DSM-IV-TR or DSM-5 criteria.

Complete details regarding the Conners 3 DSM-5 Update are available in the Conners 3 DSM-5 Update Supplement.


  • General Psychopathology
  • Inattention
  • Hyperactivity/Impulsivity
  • Learning Problems
  • Executive Functioning
  • Defiance/Aggression
  • Peer Relations
  • Family Relations
  • ADHD Inattentive
  • ADHD Hyperactive-Impulsive
  • ADHD Combined
  • Oppositional Defiant Disorder
  • Conduct Disorder
C. Keith Conners

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