Some developmental health professionals refer to PDD-NOS as “subthreshold autism.. In other words, it’s the diagnosis they use for someone who has some but not all characteristics of autism or who has relatively mild symptoms.
https://www.autismspeaks.org/what-autism/pdd-nos
As for the other pervasive developmental disorders, diagnosis of PDD-NOS requires the involvement of a team of specialists. The individual needs to undergo a full diagnostic evaluation, including a thorough medical, social, adaptive, motor skills and communication history.
https://en.wikipedia.org/wiki/PDD-NOS
What is PDD-NOS? PDD-NOS stands for Pervasive Developmental Disorder-Not Otherwise Specified. PDD-NOS was one of several previously separate subtypes of autism that were folded into the single diagnosis of autism spectrum disorder (ASD) with the publication of the DSM-5 diagnostic manual in 2013.
https://www.autismspeaks.org/what-autism/pdd-nos
Behavior analysis is a scientifically validated approach to understanding behavior and how it is affected by the environment. In this context, “behavior refers to actions and skills. Environment includes any influence – physical or social – that might change or be changed by one's behavior.
https://www.autismspeaks.org/what-autism/treatment/applied-behavior-analysis-aba
The diagnosis of a pervasive developmental disorder not otherwise specified is given to individuals with difficulties in the areas of social interaction, communication, and/or stereotyped behavior patterns or interests, but who do not meet the full DSM-IV criteria for autism or another PDD.
https://en.wikipedia.org/wiki/PDD-NOS
[edit on Wikidata] A pervasive developmental disorder not otherwise specified (PDD-NOS) is one of the three autism spectrum disorders (ASD) and also one of the five disorders classified as a pervasive developmental disorder (PDD).
https://en.wikipedia.org/wiki/PDD-NOS
It only means that individuals who receive this diagnosis do not meet the diagnostic criteria of the other PDDs, but that there is still a pervasive developmental disorder that affects the individual in the areas of communication, socialization and behavior.
https://en.wikipedia.org/wiki/PDD-NOS
Applied behavior analysis (ABA) is the use of these techniques and principles to bring about meaningful and positive change in behavior. As mentioned, behavior analysts began working with young children with autism and related disorders in the 1960s. Early techniques often involved adults directing most of the instruction. Some allowed the child to take the lead.
https://www.autismspeaks.org/what-autism/treatment/applied-behavior-analysis-aba
Applied Behavior Analysis (ABA) Autism Speaks Autism Treatment Network (ATN) now has a tool kit to help parents work with their children’s applied behavior analysts.
https://www.autismspeaks.org/what-autism/treatment/applied-behavior-analysis-aba
As a diagnosis, PDD-NOS remains relatively new, dating back only 15 years or so. As a result, some physicians and educators may not be familiar with the term or may use it incorrectly. The current Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) spells out the criteria for a diagnosis of PDD-NOS.
https://www.autismspeaks.org/what-autism/pdd-nos
what does pervasive behavior mean
Pervasive behavior means pervasive developmental disorders.