Autism Symptoms Checklist

Download a free printable autism symptoms checklist or aspergers checklist to know the signs of autism in toddlers as soon as possible. Early intervention that involves applied behavior analysis with an ABA therapist greatly increases the chances of recovery from symptoms.

Additional treatments for autistic disorder available are also important to start as soon as possible, such as biomedical treatments or occupational therapy for children that also appear to have issues with sensory processing.

A checklist is not intended to diagnose your child, but should be able to provide you with a good starting point for determining whether your child should have further evaluation.

The first checklist gives a list of the characteristics for autism as indicated by the DSM-IV diagnostic criteria(1). The second checklist is good for evaluating autism symptoms in toddlers.

autism symptoms checklist, signs symptoms of autism, behavior characteristics of autism

You will need Adobe Reader (the latest version is recommended) installed on your computer in order to open and print an autism symptoms checklist. You can get Adobe Reader here (a new window will open so you can download it without leaving this page, but you will need to temporarily disable any pop up blockers to open the new window).

If you want to open the file in your browser window, just click on the image. However, if you want to download the file to view later, then right-click on the link and choose "Save Target As" or "Save File As." Then select where you want to save the file on your hard drive.

Once you have saved the file, locate where you saved it, and double click to open.

In order to print, open the downloaded file, and select the "Print" option.

autism symptoms checklist

In addition to the autism symptoms checklist, you may also find one for ADHD and an aspergers checklist available to download.

ADHD checklist, ADHD symptoms

aspergers checklist, autism symptoms checklist


1. American Psychiatric Association. (2000). Pervasive Developmental Disorders In Diagnostic and statistical manual of mental disorders (Fourth edition---text revision (DSM-IV-TR). Washington, DC: American Psychiatric Association, 70-75.

2. Baron-Cohen, S. et. al. (1992) "Can autism be detected at 18 months? The needle, the haystack, and the CHAT," The British Journal of Psychiatry, 161, pp. 839-843.

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