Parker, A.T. (2009). Measuring an adapted form of Picture Exchange Communication System (PECS) for young children with visual impairments and developmental disabilities.

Doctoral Dissertation, Texas Tech University.
Abstract: The Picture Exchange Communication System (PECS) has been shown to build the expressive communication skills for students with autism and those with developmental disabilities. Traditional PECS teaching strategies rely upon an intact visual sense for accessing pictures, line drawings, gestures or other visual supports from a communication partner to request items, or make choices about desired objects in the environment. The use of 3‐D parts of objects may be useful in adapting the PECS protocol for individuals with visual impairments and additional disabilities. This study examined the effects of an adapted form of PECS on the communication skills for three students with visual impairments and developmental delays.

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