Echolalia is a linguistic phenomenon common in individuals with Autism Spectrum Disorder. This study examined the relationship between demand complexity and immediate echolalia in 4 students with an autism diagnosis in a university-based academic setting. Mastered and novel antecedent verbal demands that required an intraverbal response were systematically alternated using a multielement design to test whether participants' immediate echolalia was socially mediated. Results showed that immediate echolalia was more likely to occur during complex novel intraverbal tasks than in any other condition. Implications for function-based treatment are discussed. [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.]