The Use of Series of Picture Media in Improving the Expressive Language Skills of Autistic Children in Grade VII at the Bina Citra Anak Kindergarten in Serang Regency This research is motivated by the problem of how to improve children's expressive language skills using picture series media. The purpose of this study was to improve the expressive language skills of seventh-grade autistic children at SKH Bina Citra Anak using picture series media. This study used an experimental method, namely Single Subject Research (SSR) with an A-B-A design. The conclusions of this study are: (1) Subject D's expressive language skills before treatment were very low based on baseline condition 1 (A1); (2) Subject D's expressive language skills during treatment increased compared to the analysis in the Intervention condition (B); (3) Subject D's expressive language skills after treatment increased to the adequate category as seen from baseline condition 2 (A2); (4) Subject D's expressive language skills increased based on the results of the inter-condition analysis: before treatment, the student's ability increased to the high category during treatment, and from the high category during treatment, it decreased to the adequate category after treatment. However, Subject D's score was higher than before treatment. Thus, the children's expressive language skills continued to improve after treatment, due to the influence of the intervention.
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