Selective Mutism is documented to be associated with a number of co-morbid disorders that complicate a child’s profile. Given Selective Mutism’s relationship to anxiety, most consider these co-morbid disorders to be psychiatric in nature including depression, panic disorders, dissociative disorders, obsessive-compulsive behavior, and Asperger’s disorder (Sharp et al., 2006). Kopp and Gillberg (1997) found that 7.4 percent of children with Selective Mutism also met criteria for Asperger’s disorder. More recently, Stein et. al. (2010) found a partially shared etiology between Autism Spectrum Disorders and Selective Mutism.