Abstract
Single subject research and multiple-probe across subjects design was applied. Three children with Developmental Disabilities (DD) from the inclusive pre-school settings participated in this study. Three subjects all got 10 times of training in the intervention phase, and 3 times of training in the follow-up phase. Visual analysis was used in this study in order to analyze the effectiveness of parents’ involvement plan during toy playing sessions on reducing the occurrence of self-injury for children with DD. The structured interview protocols were used to interview these parents who have children with DD. After recoded these data, these parents felt the improvements on expression, emotion, and interaction with classmates for children with DD. The communication between these parents and teachers was also increased.