Autism is a complex developmental disorder that can be
defined at three different interdependent levels: as a
neurological disorder, which deals with development of the
brain; as a psychological disorder of cognitive, behavioral and
emotional development; or as a relationship disorder in which
social impairments are present. Since children manifest
different combinations of these symptoms depending on their age
and ability, autism is also viewed as a spectrum disorder to
show this range (Kusch & Petermann, 1995). Due to the
significantly different ranges of symptoms presented in
individuals with autism spectrum disorders (ASD), it may be
challenging for parents and professionals to decide on one of
many treatment options that are available.
Advances in the research and treatment of ASD have helped
guide parents in deciding on the best treatment plan for their
child. Picture Exchange Communication System (PECS) , for
example, is an extensively researched communication program
(Preston & Carter, 2009). The Picture Exchange Communication
System (PECS) is a picture-based system developed to help young
children with ASD acquire functional communication skills. This
program has been influenced by contemporary practices and
education treatment approaches, as well as by currently
available practices that focus on the core deficits observed in
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ASD, which include social communication and emotional
regulation