“…They call for attention to a number of barriers that require to be addressed head-on in order to achieve enhanced pedagogical outcomes in this virtual world. These barriers include hardware problems (Boulos & Toth-Cohen, 2009;deWinter & Vie, 2008;Larach & Cabra, 2010;Warburton, 2009), software problems (Boulos & Toth-Cohen, 2009;Inman, Wright & Hartman, 2010;Taylor & Chyung, 2008) and violence (Zhang, 2011), as well as instructors' increasing workload (deWinter & Vie, 2008;Taylor & Chyung, 2008). While the above-mentioned studies, along with many others, are fundamental and commendable, most of them are non-empirical and confined to such research fields as information science, library information science and medical education (Zhang, 2011), as well as conducted in the context of "media arts and health and environment disciplines" (Hew & Cheung, 2010, p. 13).…”