The current study focused to investigate the efficacy of discrete trial training program under multiple contexts for developing social communication skills in a boy with autism spectrum disorder in Pakistani society. Single subject experimental design was employed to investigate the phenomenon of the study. This research design was consistent with specific reversal design (Seah, 1997) such as A-B-C-D-E-A and two follow up periods. Enrolled children at Govt. Special Education Centers across the Punjab province of Pakistan were taken as the population of the study. The researchers completed the procedure into seven steps. Descriptive statistics supported the researchers to describe the features of the obtained data of the study.

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