ARI’s Diagnostic Checklist, Form E-2, was developed by Dr. Bernard Rimland to diagnose children with Kanner’s syndrome, which is also known as ‘classical autism.’ Many parents and professionals have also used the E-2 checklist to assist in the diagnosis of autism spectrum disorder (ASD).

The Form E-2 checklist also asks parents to rate the effectiveness of various interventions they have tried on their son/daughter. Information on the effectiveness of interventions is compiled on a regular basis and the resulting Parent Ratings of Behavorial Effects of Biomedical Interventions are shared with families and professionals throughout the world.

Form E-2 is available on request in English. Our files contain information on over 40,000 children from more than 60 countries. Our service to researchers depends in part on our having a comprehensive bank of up-to-date information about children with these severe disorders. Your help in completing the E-2 checklist and submitting them to ARI will be greatly appreciated.

Download the E-2 (English, PDF)


The responses on Form E-2 are entered into a computer which calculates a diagnostic score. The score along with its interpretation is sent to the person or agency submitting the checklist. In addition, a file number is assigned to each child for data recording and analysis, and to ensure confidentiality.

Form E-3

Form E-3, a supplement to Form E-2, contains additional questions which are designed to explore a number of leads which have been uncovered in our search for the causes of severe behavior disorders in children. Form E-3 is sent to families upon completion of Form E-2. Note: there is no score derived from Form E-3; and therefore, there is no individualized report. An interesting and informative paper about autism is sent to the person or agency submitting a completed E-3 form as a token of our appreciation. Additionally, the information about your child will be kept permanently in our computer databank, so that it will be possible to contact you if future research produces relevant diagnostic or treatment implications.

If you would like to complete the Diagnostic Checklist Form E-2, you can download and print the checklist (Adobe pdf file), and then mail it to the Autism Research Institute, 4182 Adams Ave., San Diego, CA 92116.

Download the PDF file