ACER are excited to announce the 2022 release of the Conners 4™.

Conners 4 is the highly anticipated revision of Conners 3rd Edition (Conners 3®), the world’s leading AttentionDeficit/Hyperactivity Disorder (ADHD) assessment.

This newest edition builds on the long history and strengths of the multi-informant Conners Rating Scales and provides a thorough assessment of symptoms and impairments associated with ADHD, as well as common co-occurring problems and disorders, in youth aged 6 to 18 years.

With updated norms, improved workflows, and new and improved features, Conners 4 will be an invaluable part of your ADHD battery.


Download the Conners 4 Info Sheet


Comparing Conners 3 and Conners 4

  1. Online Conners 4 Form (pkg 5)
    Online Conners 4 Form (pkg 5)
    In stock
    Qualification required

New Features of the Conners 4


  • Improved usability with customisable reports and a digital manual
  • Improve efficiency with a fully digital assessment, online scoring and reporting, easy inventory management and printable forms


  • Address clinical concerns with a Severe Conduct and Self-Harm Critial Items and a Sleeps Problem Indicator
  • Measure impairments related to ADHD symptoms in the school, social, and family domains
  • Evaluate new content areas and common co-occuring problems such as Emotional Dysregulation, Depressed Mood and Anxious Thoughts
  • Apply a dimensional approach to ADHD assessment with an additional DSM-5 Symptoms Scale - Total ADHD Symptoms


  • Evaluate severity of syptoms and level of impariment due to symptoms by comparing the youth's results to an ADHD Reference Sample (others already diagnosed with ADHD)


  • Facilitate collaboration with parents using the enhanced Feedback Handout (easy-to-understand explanation and summary of results)


  • Increased fairness and inclusivity with gender-neutral language, culturally sensitive items, and items and scales that show no evidence of measurement bias regarding gender, race/ethnicity, country of residence, or parental education level


  • Evaluate an individual's relative strengths and weaknessess using Within-Profile Comparisons

Additional Features

Conners 4 - coming soon to the ACER Psych Testing Platform

Whilst currently available on MAC+, coming soon to A.C.E.R you will have the option to access your A.C.E.R online tests and the Conners 4 in one convenient place - the ACER Psych Testing Platform.

The ACER Psych Testing Platform offers:

  • the option to print your Conners forms and key-enter data, or test fully online
  • easy to use candidate management capabilities
  • single or bulk candidate upload
  • in-built customer communication features
  • instant candidate reporting capabilities
  • a personalised online store that is always accessible
  • a dedicated support team

Onboarding resources for existing Conners 3 online users (MAC+)

An efficient process will be made available to online product users of the Conners 3rd Edition (Conners 3®) to help your transition to the Conners 4th Edition (Conners 4™). This simple self-serve option will be implemented through the MHS Online Assessment Center+.

On the day of Conners 4 release, all MHS Online Assessment Center+ (MAC+) Admin account users who have Conners 3 Online uses will have immediate access to Conners 4 within their account.

  • Any unused form specific to Conners 3 Online uses can be substituted for Conners 4 uses. Uses will be substituted on a one-for-one basis.
  • The transition process will launch when Conners 4 is released and will be available for 12 months from the release date
  • Admin users must enable Conners 4 through Account Settings/Manage My Assessments. Admin users can also grant their Sub-users access to Conners 4 by enabling access for Sub-users.
  • Admin and Sub-users can administer Conners 4 to clients even when their Conners 4 use balance is zero (as per above)
  • Admin and Sub-users who want to generate a Conners 4 report when their Conners 4 use balance is zero can do so by selecting an available Conners 3 use. Admin and Sub-users can specify which Conners 3 use to substitute during the report generation.
  • Please note: During the transition, if Conners 4 uses are purchased and added to the account, the Conners 4 uses will be used first to generate reports, before the substitution option is available again