Background & aims: Although the Picture Exchange Communication System (PECS) has been demonstrated to be an effective intervention to teach people diagnosed with autism spectrum disorder a functional communication system, the research indicates variability in PECS outcomes across people and studies. Therefore, the purpose of the current study…

Social participation of children with an autism spectrum disorder (ASD) in natural environments can be enhanced by teaching them to communicate spontaneously, at least in situations where they have the motivation to access specific items or activities by controlling the amount of access for these stimuli. The purpose of this study was to determine…

The purpose of the present study was to investigate the acquisition, maintenance, and generalization effects of antecedent prompt and testing procedure (APTP) on teaching emergency phone numbers to youth with developmental disabilities. Three youths with mental retardation participated in the study. All participants were inclusion students at a…