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How Does PDD-NOS Differ From Pervasive Developmental Disorder?

Michael Alessandri, Ph.D., Exec. Director, University of Miami Center for Autism & Related Disabilities
Oct. 23, 2008

Question: How does PDD-NOS differ from pervasive developmental disorder?

Answer: PDD-NOS differs dramatically from pervasive developmental disorder. Pervasive developmental disorder is the actual category under which the autism spectrum or pervasive developmental disorders falls. PDD-NOS is one of the five specific diagnostic categories within the PDD umbrella.

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