Social media, as a favored platform for autistic adults, provides numerous opportunities to socialize and develop close relationships. However, autistic adults may have social skill difficulties that carry over to this platform. Further, social media-related risks pose additional concerns. This study taught four autistic adults social media-related social skills and safety skills. A multiple probe across four participants experimental design was used to evaluate the efficacy of the social media-based social skill and safety skill intervention on social media-related social skills (i.e., correct "Like," correct commenting, correct sharing, and correct creating) and safety skills (i.e., the use of five-step social media-related risk responding strategy) among autistic adults. In addition, the study measured whether implementing the proposed intervention decreased the loneliness level of autistic adults. The participants showed improvement in both social media-related social skills and safety skills. The intervention did not change the participants' self-reported loneliness level. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]