Pervasive Development Disorders (PDDs) Include Autistic Disorder, Rett's Syndrome, and Asperger's

question 31

True/False

Pervasive development disorders (PDDs) include autistic disorder, Rett's syndrome, and Asperger's syndrome.

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Definitions:

Extra Copy Of Chromosome 21

A genetic anomaly that results in Down syndrome, characterized by physical growth delays, characteristic facial features, and mild to moderate intellectual disability.

Down Syndrome

A genetic disorder caused by the presence of all or part of a third copy of chromosome 21, characterized by a combination of distinctive physical features and developmental delays.

Autism Spectrum Disorder

A range of neurodevelopmental disorders characterized by challenges with social skills, repetitive behaviors, speech, and nonverbal communication.

Longitudinal Study

Research that follows and retests the same people over time.