| Sumario: | In this study, it was aimed to enable children with Autism Spectrum Disorder (ASD) who do not have the ability to engage themselves to acquire the skill of engaging in developmental games on a tablet using an activity schedule. The participants of the study were a 4-year-old girl and two 6-year-old boys who were receiving education in a special education center in Istanbul, Turkey. These children had functional speech limitations, did not know how to follow an activity schedule, and exhibited various behavioral problems. In the study, the skill of engaging in a set of developmental games (coloring, matching, role-playing as a doctor, solving puzzles, and finding hidden objects) using selected applications on the tablet was taught to each participant with the gradual reduction of the prompt method through the activity schedule. In the study, a multiple probe design across subjects, one of the single-subject research methods, was used. The results of the study showed that children with ASD acquired the skill of engaging in a set of developmental game activities on a tablet using an activity schedule within an average of 4–6 weeks. They were able to generalize this skill to different environments and maintain it during the second and fourth weeks after the end of the research process. Social validity results related to the research process and outcome were found to be positive.
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