“…The distinguishing characteristics include class structure (Paloff & Pratt, 2001), the level and types of peer-to-peer and student-teacher interactions that take place (Bernard et al 2004;Lally & Barrett, 1999), and the lack of "social presence" during the learning process (Aragon, 2003;Bibeau, 2001;Garrison & Cleveland-Innes, 2005). While many studies of higher education learning outcomes have found no statistical differences in achievement for online courses compared to traditional, face-to-face courses, there remains concern that the quality and depth of learning may be affected in online courses (Allen, Bourhis, Burrell, & Mabry, 2002;Lockyer, Patterson, & harper, 2001;Neuhauser, 2002;Thirunarayanan & Peres-Prado, 2001-2002. Mediating variables that may promote or hinder learning success in an online environment have been isolated in several studies and these include students' attitudes towards the online environment (Sherry, fulford, & Zhang, 1998) and their beliefs about the efficacy of online learning (Cooper, 2001;Allen et al, 2002;Muilenburg & Berge, 2001;Navarro & Shoemaker, 2000;Smith & Dillon, 1999).…”