A purpose of case report was to teach a young preschool student with autism to request for food or drink using a Picture Exchange Communication System (PECs) across several prompting strategies. The number of independent exchanges served as our dependent variable. Various prompting and icon placement strategies were employed to determine an effective strategy (i. e. no prompt, full prompt, partial prompt, open hand prompt with icon on table, no prompt with icon on the table, no prompt with icon on carpet, no prompt with icon on cardboard) for our participant. The outcomes were evaluated in an ABCDEFGH single case design. The overall outcomes indicated that independent exchanges did not occur until an open hand prompt with the icon on the table was employed. Increases in independent exchanges were found all other prompt phases. Prompts were faded and the icons were placed on a Velcro strip and were maintained. The strengths and limitations of the procedures were discussed.
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