The purpose of this study was to determine the efficacy of a social story intervention implemented in a home setting to decrease precursors to tantrum behavior in a 5-year-old boy with autism. Using an ABAB design, two social stories were presented and withdrawn while using an event recording procedure in which interrupting verbalizations, determined to be precursors to tantrum behavior, were tallied. Data revealed a decrease in interrupting verbalizations and tantrums when the social stories were available and an increase in these behaviors when the social stories were withdrawn.Five and one-half decades have passed since Kanner (1943) originally identified social interaction, language, and communication characteristics of 11 individuals with autism.