This research used an alternating treatment design to investigate the relative effectiveness of participant specific social stories delivered using two distinct formats (i.e., technology-based, paper/book), on increasing the frequency of initiations and responses of two adolescents with ASD. Visual analysis of baseline, intervention, maintenance, and generalization data results indicated the intervention increased the frequency of initiations and on-topic responses regardless of delivery format; however, calculation of Percentage of Nonoverlapping Pairs and TAU-U for both formats indicated variable levels of effectiveness for each condition, with ranges of 43–86% and 0.02381–0.76190 respectively. Finally, despite varied results, both participants preferred the technology-based social story format and parents of both participants agreed the social story intervention increased communicative skills. [ABSTRACT FROM AUTHOR]