Five reinforcing activities were presented to and interrupted for two participants with autism. An errorless teaching procedure was then introduced with two similar activities prompting the participants to request information saying "How?" in order to resume the activity. The dependent variable included both the cumulative number of…

Students with autism spectrum disorder (ASD) have difficulties in communication that limit their opportunities to participate in daily living and educational activities. Augmentative alternative communication is one of the strategies used to strengthen the communication skills of students with limited communication skills. Students with ASD…