Autism spectrum disorder (ASD) is characterized by underdeveloped social interaction and communicative abilities, as well as repetitive patterns of behaviour (American Psychiatric Association [APA], 2013). A subset of individuals within the autism spectrum exhibit underdeveloped intellectual or language abilities, these individuals are often referred to as displaying High-Functioning ASD (HFASD, APA, 2013). Due to the intact cognitive abilities of individuals with HFASD, attention is drawn to their difficulties within social interaction and communication (Lopata, Volker, Putnam, Thomeer, & Nida, 2008). These social and emotional challenges cause difficulties in many important areas of functioning, including within interpersonal and vocational domains (APA 2013). Thus, individuals with HFASD often have difficulties living independently in adulthood, as it may be challenging for these individuals to interact with others, as well as to maintain paid employment (Howlin, 2000, Tsatsanis, 2003), despite their typically intact cognitive abilities. Importantly, it appears that early diagnosis and intervention may improve the quality of life, and thus long-term outcome, for these individuals (Tidmarsh & Volkmar, 2003). Early intervention and appropriate support for individuals with HFASD can help minimize challenging experiences and ensure that existing skills are developed to their fullest (Howlin, 2000). Further, the positive impact of effective professional and peer support found in early intervention can mitigate the negative impact of social and emotional challenges on an individual's quality of life (Renty & Roeyers, 2006). To improve these individual's quality of life, the individual must perceive the intervention as personally supportive (Renty & Roeyers, 2006).