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The Orange Effect Foundation

Empowering children and young adults with speech disorders

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Why Knowing There are Four Types of Autism is Important

February 12, 2026 By Pam Pulizzi

Several months ago, new research was released from Princeton University. I haven’t quite figured out why, but it didn’t really get the press or publicity that I thought it might. Sidenote, here I am almost 6 months later, finally writing about it.

The research shows what many have known, that there are different types of autism. This research does two important things. It figures out that there are four different kinds, and it helps us identify those four different kinds.

I’ve talked to many families in the past who want to know what we did to help our oldest, who was diagnosed with autism at age 2, be successful. When they talk about the things with their children, they’re often very different than our experience. Now with this research, we have the words we need to help understand why that might be.

You can reference the research here, but for a short update, the four types are:

(ASD is Autism Spectrum Disorder)

*Social and Behavioral Challenges

*Mixed ASD with Developmental Delay

*Moderate Challenges

*Broadly Affected

This is a vast difference from back when we got our diagnosis in 2003. There were simply mild, medium, and high, and they didn’t have defined parameters that were easy to understand.

So this new research does two things for us. One is to help identify the category. And the reason for that being so important is the second thing that the research helps us understand is how to best work with these individuals to help them have the highest rate of success. So, for example, you would not work in the same style with someone who has social and behavioral challenges as you would with someone who has moderate challenges.

As a proponent of all research, I am excited for the many therapists I know to be able to take this information forward in the work they do.  The more we learn, the better we can do. 

About Pam Pulizzi

Pam is the Co-Founder of the Orange Effect Foundation. She worked in the marketing field for the past 15 years. During that time she found her passion to build and lead amazing teams because of the commitment of the team she worked with.

Pam's background is in social work, and she is raising a child with autism so the opportunity to start and direct this nonprofit is a dream come true. She has been a key leader in the CMI Golf for Autism for the past 15 years and a champion for many other nonprofit organizations.

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